Open Paleo

Genera

1,428 genera in release 2026.11, from A to Z.

A

  • Aardonyx Yates et al., 2010 SauropodomorphaEarly JurassicSouth Africa
  • Abdarainurus Averianov & Lopatin, 2020 SauropodomorphaLate CretaceousMongolia
  • Abditosaurus Vila et al., 2022 SauropodomorphaLate CretaceousSpain
  • Abelisaurus Bonaparte & Novas, 1985 TheropodaLate CretaceousArgentina
  • Abrictosaurus Hopson, 1975 HeterodontosaurinaeEarly JurassicLesotho
  • Abrosaurus Ouyang, 1989 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Abydosaurus Chure et al., 2010 SauropodomorphaEarly CretaceousUnited States
  • Acantholipan Rivera-Sylva et al., 2018 ThyreophoraLate CretaceousMexico
  • Acanthopholis Nomen dubium Huxley, 1867 ThyreophoraLate CretaceousUnited Kingdom
  • Achelousaurus Sampson, 1995 CeratopsiaLate CretaceousUnited States
  • Acheroraptor Evans et al., 2013 TheropodaLate CretaceousUnited States
  • Achillesaurus Disputed Martinelli & Vera, 2007 TheropodaLate CretaceousArgentina
  • Achillobator Perle et al., 1999 TheropodaLate CretaceousMongolia
  • Acristavus Gates et al., 2011 OrnithopodaLate CretaceousUnited States
  • Acrocanthosaurus Stovall & Langston, 1950 TheropodaEarly CretaceousUnited States
  • Acrotholus Evans et al., 2013 PachycephalosauriaLate CretaceousCanada
  • Adamantisaurus Santucci & Bertini, 2006 SauropodomorphaLate CretaceousBrazil
  • Adasaurus Barsbold, 1983 TheropodaLate CretaceousMongolia
  • Adelolophus Gates et al., 2014 OrnithopodaLate CretaceousUnited States
  • Adeopapposaurus Martínez, 2009 SauropodomorphaEarly JurassicArgentina
  • Adratiklit Maidment et al., 2020 ThyreophoraMiddle JurassicMorocco
  • Adynomosaurus Prieto-Márquez et al., 2019 OrnithopodaLate CretaceousSpain
  • Aegyptosaurus Stromer, 1932 SauropodomorphaLate CretaceousEgypt
  • Aeolosaurus Powell, 1987 SauropodomorphaLate CretaceousArgentina
  • Aepisaurus Gervais, 1852 SauropodomorphaEarly CretaceousFrance
  • Aepyornithomimus Chinzorig et al., 2017 TheropodaLate CretaceousMongolia
  • Aerosteon Sereno et al., 2008 TheropodaLate CretaceousArgentina
  • Afromimus Sereno, 2017 TheropodaEarly CretaceousNiger
  • Afrovenator Sereno et al., 1994 TheropodaMiddle Jurassic–Late JurassicNiger
  • Agathaumas Nomen dubium Cope, 1872 CeratopsiaLate CretaceousUnited States
  • Agilisaurus Peng, 1992 NeornithischiaMiddle Jurassic–Late JurassicChina
  • Agrosaurus Nomen dubium Seeley, 1891 SauropodomorphaLate TriassicUnited Kingdom
  • Agujaceratops Lucas et al., 2006 CeratopsiaLate CretaceousUnited States
  • Agustinia Bonaparte, 1999 SauropodomorphaEarly CretaceousArgentina
  • Ahshislepelta Burns & Sullivan, 2011 ThyreophoraLate CretaceousUnited States
  • Ahshislesaurus Dalman et al., 2025 OrnithopodaLate CretaceousUnited States
  • Ahvaytum Lovelace et al., 2025 SauropodomorphaLate TriassicUnited States
  • Ajkaceratops Ősi et al., 2010 CeratopsiaLate CretaceousHungary
  • Ajnabia Longrich et al., 2021 OrnithopodaLate CretaceousMorocco
  • Akainacephalus Wiersma & Irmis, 2018 ThyreophoraLate CretaceousUnited States
  • Alamosaurus Gilmore, 1922 SauropodomorphaLate CretaceousUnited States
  • Alaskacephale Sullivan, 2006 PachycephalosauriaLate CretaceousUnited States
  • Albalophosaurus Ohashi & Barrett, 2009 MarginocephaliaEarly CretaceousJapan
  • Albertaceratops Ryan, 2007 CeratopsiaLate CretaceousCanada
  • Albertadromeus Brown et al., 2013 OrodrominaeLate CretaceousCanada
  • Albertavenator Evans et al., 2017 TheropodaLate CretaceousCanada
  • Albertonykus Longrich & Currie, 2009 TheropodaLate CretaceousCanada
  • Albertosaurus Osborn, 1905 TheropodaLate CretaceousCanada
  • Albinykus Nesbitt et al., 2011 TheropodaLate CretaceousMongolia
  • Alcmonavis Disputed Rauhut et al., 2019 TheropodaLate JurassicGermany
  • Alcovasaurus Galton & Carpenter, 2016 ThyreophoraLate JurassicUnited States
  • Alectrosaurus Gilmore, 1933 TheropodaLate CretaceousChina
  • Aletopelta Ford & Kirkland, 2001 ThyreophoraLate CretaceousUnited States
  • Algoasaurus Broom, 1904 SauropodomorphaEarly CretaceousSouth Africa
  • Alioramus Kurzanov, 1976 TheropodaLate CretaceousMongolia
  • Allosaurus Marsh, 1877 TheropodaLate JurassicUnited States
  • Almas Pei et al., 2017 TheropodaLate CretaceousMongolia
  • Alnashetri Makovicky et al., 2012 TheropodaLate CretaceousArgentina
  • Alocodon Nomen dubium Thulborn, 1973 OrnithischiaMiddle Jurassic–Late JurassicPortugal
  • Alpkarakush Rauhut et al., 2024 TheropodaMiddle JurassicKyrgyzstan
  • Altirhinus Norman, 1998 OrnithopodaEarly CretaceousMongolia
  • Altispinax Huene, 1923 TheropodaEarly CretaceousUnited Kingdom
  • Alvarezsaurus Bonaparte, 1991 TheropodaLate CretaceousArgentina
  • Alxasaurus Russell & Dong, 1993 TheropodaEarly CretaceousChina
  • Amanzia Schwarz et al., 2020 SauropodomorphaLate JurassicSwitzerland
  • Amargasaurus Salgado & Bonaparte, 1991 SauropodomorphaEarly CretaceousArgentina
  • Amargastegos Nomen dubium Ulansky, 2014 ThyreophoraEarly CretaceousArgentina
  • Amargatitanis Apesteguía, 2007 SauropodomorphaEarly CretaceousArgentina
  • Amazonsaurus Carvalho et al., 2003 SauropodomorphaEarly CretaceousBrazil
  • Ambopteryx Wang et al., 2019 TheropodaMiddle JurassicChina
  • Ampelognathus Tykoski et al., 2023 OrnithopodaLate CretaceousUnited States
  • Ampelosaurus Le Loeuff, 1995 SauropodomorphaLate CretaceousFrance
  • Amphicoelias Cope, 1877 SauropodomorphaLate JurassicUnited States
  • Amtocephale Watabe et al., 2011 PachycephalosauriaLate CretaceousMongolia
  • Amtosaurus Nomen dubium Kurzanov & Tumanova, 1978 OrnithischiaLate CretaceousMongolia
  • Amurosaurus Bolotsky & Kurzanov, 1991 OrnithopodaLate CretaceousRussia
  • Amygdalodon Cabrera, 1947 SauropodomorphaEarly JurassicArgentina
  • Anabisetia Coria & Calvo, 2002 OrnithopodaLate CretaceousArgentina
  • Analong Ren et al., 2020 SauropodomorphaMiddle JurassicChina
  • Anasazisaurus Hunt & Lucas, 1993 OrnithopodaLate CretaceousUnited States
  • Anchiceratops Brown, 1914 CeratopsiaLate CretaceousCanada
  • Anchiornis Xu et al., 2009 TheropodaMiddle Jurassic–Late JurassicChina
  • Anchisaurus Marsh, 1885 SauropodomorphaEarly JurassicUnited States
  • Andesaurus Calvo & Bonaparte, 1991 SauropodomorphaLate CretaceousArgentina
  • Angolatitan Mateus et al., 2011 SauropodomorphaLate CretaceousAngola
  • Angulomastacator Wagner & Lehman, 2009 OrnithopodaLate CretaceousUnited States
  • Anhuilong Ren et al., 2020 SauropodomorphaMiddle JurassicChina
  • Aniksosaurus Martínez & Novas, 2006 TheropodaLate CretaceousArgentina
  • Animantarx Carpenter et al., 1999 ThyreophoraLate CretaceousUnited States
  • Ankylosaurus Brown, 1908 ThyreophoraLate CretaceousUnited States
  • Anodontosaurus Sternberg, 1929 ThyreophoraLate CretaceousCanada
  • Anomalipes Yu et al., 2018 TheropodaLate CretaceousChina
  • Anoplosaurus Seeley, 1879 ThyreophoraEarly CretaceousUnited Kingdom
  • Anserimimus Barsbold, 1988 TheropodaLate CretaceousMongolia
  • Antarctopelta Salgado & Gasparini, 2006 ThyreophoraLate CretaceousAntarctica
  • Antarctosaurus Huene, 1929 SauropodomorphaLate CretaceousArgentina
  • Anteavis Martínez et al., 2025 TheropodaLate TriassicArgentina
  • Antetonitrus Yates & Kitching, 2003 SauropodomorphaEarly JurassicSouth Africa
  • Anzu Lamanna et al., 2014 TheropodaLate CretaceousUnited States
  • Aoniraptor Motta et al., 2016 TheropodaLate CretaceousArgentina
  • Aorun Choiniere et al., 2013 TheropodaMiddle JurassicChina
  • Apatodon Nomen dubium Marsh, 1877 DinosauriaEarly Jurassic–Early CretaceousUnited States
  • Apatoraptor Funston & Currie, 2016 TheropodaLate CretaceousCanada
  • Apatosaurus Marsh, 1877 SauropodomorphaLate JurassicUnited States
  • Appalachiosaurus Carr et al., 2005 TheropodaLate CretaceousUnited States
  • Aquilarhinus Prieto-Márquez et al., 2020 OrnithopodaLate CretaceousUnited States
  • Aquilops Farke et al., 2014 CeratopsiaEarly CretaceousUnited States
  • Arackar Rubilar-Rogers et al., 2021 SauropodomorphaLate CretaceousChile
  • Aragosaurus Sanz et al., 1987 SauropodomorphaLate Jurassic–Early CretaceousSpain
  • Aralosaurus Rozhdestvensky, 1968 OrnithopodaLate CretaceousKazakhstan
  • Aratasaurus Sayão et al., 2020 TheropodaEarly CretaceousBrazil
  • Archaeoceratops Dong & Azuma, 1997 CeratopsiaEarly CretaceousChina
  • Archaeocursor Yao et al., 2025 OrnithischiaEarly JurassicChina
  • Archaeodontosaurus Buffetaut, 2005 SauropodomorphaMiddle JurassicMadagascar
  • Archaeopteryx Meyer, 1861 TheropodaLate JurassicGermany
  • Archaeornithoides Elżanowski & Wellnhofer, 1992 TheropodaLate CretaceousMongolia
  • Archaeornithomimus Russell, 1972 TheropodaLate CretaceousChina
  • Arcovenator Tortosa et al., 2014 TheropodaLate CretaceousFrance
  • Arcusaurus Yates et al., 2011 SauropodomorphaEarly JurassicSouth Africa
  • Ardetosaurus van der Linden et al., 2024 SauropodomorphaLate JurassicUnited States
  • Arenysaurus Pereda-Suberbiola et al., 2009 OrnithopodaLate CretaceousSpain
  • Argentinosaurus Bonaparte & Coria, 1993 SauropodomorphaLate CretaceousArgentina
  • Argyrosaurus Lydekker, 1893 SauropodomorphaLate CretaceousArgentina
  • Aristosuchus Seeley, 1887 TheropodaEarly CretaceousUnited Kingdom
  • Arkansaurus Hunt & Quinn, 2018 TheropodaEarly CretaceousUnited States
  • Arkharavia Nomen dubium Alifanov & Bolotsky, 2010 SauropodomorphaLate CretaceousRussia
  • Arrhinoceratops Parks, 1925 CeratopsiaLate CretaceousCanada
  • Arrudatitan Silva Junior et al., 2022 SauropodomorphaLate CretaceousBrazil
  • Arstanosaurus Nomen dubium Shilin & Suslov, 1982 OrnithopodaLate CretaceousKazakhstan
  • Asfaltovenator Rauhut & Pol, 2019 TheropodaEarly Jurassic–Middle JurassicArgentina
  • Asiaceratops Disputed Nessov et al., 1989 CeratopsiaLate CretaceousUzbekistan
  • Asiatosaurus Nomen dubium Osborn, 1924 SauropodomorphaEarly CretaceousMongolia
  • Asiatyrannus Zheng et al., 2024 TheropodaLate CretaceousChina
  • Astigmasaura Bellardini et al., 2025 SauropodomorphaLate CretaceousArgentina
  • Astrodon Leidy, 1865 SauropodomorphaEarly CretaceousUnited States
  • Astrophocaudia D'Emic, 2012 SauropodomorphaEarly CretaceousUnited States
  • Asylosaurus Disputed Galton, 2007 SauropodomorphaLate TriassicUnited Kingdom
  • Atacamatitan Kellner et al., 2011 SauropodomorphaLate CretaceousChile
  • Athenar Whitlock et al., 2025 SauropodomorphaLate JurassicUnited States
  • Atlantosaurus Nomen dubium Marsh, 1877 SauropodomorphaLate Jurassic–Early CretaceousUnited States
  • Atlasaurus Monbaron et al., 1999 SauropodomorphaMiddle JurassicMorocco
  • Atlascopcosaurus Disputed Rich & Vickers-Rich, 1989 OrnithopodaEarly CretaceousAustralia
  • Atrociraptor Currie & Varricchio, 2004 TheropodaLate CretaceousCanada
  • Atsinganosaurus Garcia et al., 2010 SauropodomorphaLate CretaceousFrance
  • Aublysodon Nomen dubium Leidy, 1868 TheropodaLate CretaceousUnited States
  • Aucasaurus Coria et al., 2002 TheropodaLate CretaceousArgentina
  • Augustynolophus Prieto-Márquez et al., 2015 OrnithopodaLate CretaceousUnited States
  • Auroraceratops You et al., 2005 CeratopsiaEarly CretaceousChina
  • Aurornis Godefroit et al., 2013 TheropodaMiddle Jurassic–Late JurassicChina
  • Australodocus Remes, 2007 SauropodomorphaLate JurassicTanzania
  • Australotitan Hocknull et al., 2021 SauropodomorphaLate CretaceousAustralia
  • Australovenator Hocknull et al., 2009 TheropodaEarly Cretaceous–Late CretaceousAustralia
  • Austrocheirus Ezcurra et al., 2010 TheropodaLate CretaceousArgentina
  • Austroposeidon Bandeira et al., 2016 SauropodomorphaLate CretaceousBrazil
  • Austroraptor Novas et al., 2009 TheropodaLate CretaceousArgentina
  • Austrosaurus Longman, 1933 SauropodomorphaEarly CretaceousAustralia
  • Avaceratops Dodson, 1986 CeratopsiaLate CretaceousUnited States
  • Aviatyrannis Rauhut, 2003 TheropodaLate JurassicPortugal
  • Avimimus Kurzanov, 1981 TheropodaLate CretaceousMongolia

B

  • Baalsaurus Calvo & González Riga, 2019 SauropodomorphaLate CretaceousArgentina
  • Bactrosaurus Gilmore, 1933 OrnithopodaLate CretaceousChina
  • Bagaceratops Maryańska & Osmólska, 1975 CeratopsiaLate CretaceousMongolia
  • Bagaraatan Disputed Osmólska, 1996 TheropodaLate CretaceousMongolia
  • Bagualia Pol et al., 2020 SauropodomorphaEarly JurassicArgentina
  • Bagualosaurus Pretto et al., 2018 SauropodomorphaLate TriassicBrazil
  • Bahariasaurus Stromer, 1934 TheropodaLate CretaceousEgypt
  • Bainoceratops Disputed Tereshchenko & Alifanov, 2003 CeratopsiaLate CretaceousMongolia
  • Baiyinosaurus Li et al., 2024 ThyreophoraMiddle JurassicChina
  • Bajadasaurus Gallina et al., 2019 SauropodomorphaEarly CretaceousArgentina
  • Balaur Csiki et al., 2010 TheropodaLate CretaceousRomania
  • Bambiraptor Burnham et al., 2000 TheropodaLate CretaceousUnited States
  • Baminornis Chen et al., 2025 TheropodaLate JurassicChina
  • Banji Xu & Han, 2010 TheropodaLate CretaceousChina
  • Bannykus Xu et al., 2018 TheropodaEarly CretaceousChina
  • Baotianmansaurus Zhang et al., 2009 SauropodomorphaLate CretaceousChina
  • Barapasaurus Jain et al., 1975 SauropodomorphaEarly JurassicIndia
  • Barilium Norman, 2010 OrnithopodaEarly CretaceousUnited Kingdom
  • Barosaurus Marsh, 1890 SauropodomorphaLate JurassicUnited States
  • Barrosasaurus Salgado & Coria, 2009 SauropodomorphaLate CretaceousArgentina
  • Barsboldia Maryańska & Osmólska, 1981 OrnithopodaLate CretaceousMongolia
  • Baryonyx Charig & Milner, 1986 TheropodaEarly CretaceousUnited Kingdom
  • Bashanosaurus Dai et al., 2022 ThyreophoraMiddle JurassicChina
  • Batyrosaurus Godefroit et al., 2012 OrnithopodaLate CretaceousKazakhstan
  • Baurutitan Kellner et al., 2005 SauropodomorphaLate CretaceousBrazil
  • Bayannurosaurus Xu et al., 2018 OrnithopodaEarly CretaceousChina
  • Beg Yu et al., 2020 CeratopsiaEarly Cretaceous–Late CretaceousMongolia
  • Beibeilong Pu et al., 2017 TheropodaLate CretaceousChina
  • Beipiaognathus Nomen dubium Hu et al., 2016 TheropodaEarly CretaceousChina
  • Beipiaosaurus Xu et al., 1999 TheropodaEarly CretaceousChina
  • Beishanlong Makovicky et al., 2010 TheropodaEarly CretaceousChina
  • Bellusaurus Dong, 1990 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Berberosaurus Allain et al., 2007 TheropodaEarly JurassicMorocco
  • Berthasaura de Souza et al., 2021 TheropodaEarly CretaceousBrazil
  • Betasuchus Nomen dubium Huene, 1932 TheropodaLate CretaceousNetherlands
  • Bicentenaria Novas et al., 2012 TheropodaLate CretaceousArgentina
  • Bicharracosaurus Reutter et al., 2026 SauropodomorphaLate JurassicArgentina
  • Bienosaurus Nomen dubium Dong, 2001 ThyreophoraEarly JurassicChina
  • Bissektipelta Parish & Barrett, 2004 ThyreophoraLate CretaceousUzbekistan
  • Bistahieversor Carr & Williamson, 2010 TheropodaLate CretaceousUnited States
  • Bisticeratops Dalman et al., 2022 CeratopsiaLate CretaceousUnited States
  • Blasisaurus Cruzado-Caballero et al., 2010 OrnithopodaLate CretaceousSpain
  • Blikanasaurus Galton & Van Heerden, 1985 SauropodomorphaLate TriassicSouth Africa
  • Bolong Wu et al., 2010 OrnithopodaEarly CretaceousChina
  • Bonapartenykus Agnolín et al., 2012 TheropodaLate CretaceousArgentina
  • Bonapartesaurus Cruzado-Caballero & Powell, 2017 OrnithopodaLate CretaceousArgentina
  • Bonatitan Martinelli & Forasiepi, 2004 SauropodomorphaLate CretaceousArgentina
  • Bonitasaura Apesteguía, 2004 SauropodomorphaLate CretaceousArgentina
  • Borealopelta Brown et al., 2017 ThyreophoraEarly CretaceousCanada
  • Borealosaurus You et al., 2004 SauropodomorphaEarly CretaceousChina
  • Boreonykus Bell & Currie, 2015 TheropodaLate CretaceousCanada
  • Borogovia Osmólska, 1987 TheropodaLate CretaceousMongolia
  • Bothriospondylus Nomen dubium Owen, 1874 SauropodomorphaLate JurassicUnited Kingdom
  • Brachiosaurus Riggs, 1903 SauropodomorphaLate JurassicUnited States
  • Brachyceratops Nomen dubium Gilmore, 1914 CeratopsiaLate CretaceousUnited States
  • Brachylophosaurus Sternberg, 1953 OrnithopodaLate CretaceousCanada
  • Brachypodosaurus Nomen dubium Chakravarti, 1934 OrnithischiaLate CretaceousIndia
  • Brachytrachelopan Rauhut et al., 2005 SauropodomorphaLate JurassicArgentina
  • Bradycneme Nomen dubium Harrison & Walker, 1975 TheropodaLate CretaceousRomania
  • Brasilotitan Machado et al., 2013 SauropodomorphaLate CretaceousBrazil
  • Bravasaurus Hechenleitner et al., 2020 SauropodomorphaLate CretaceousArgentina
  • Bravoceratops Wick & Lehman, 2013 CeratopsiaLate CretaceousUnited States
  • Breviceratops Kurzanov, 1990 CeratopsiaLate CretaceousMongolia
  • Brighstoneus Lockwood et al., 2021 OrnithopodaEarly CretaceousUnited Kingdom
  • Brohisaurus Nomen dubium Malkani, 2003 SauropodomorphaLate JurassicPakistan
  • Brontomerus Taylor et al., 2011 SauropodomorphaEarly CretaceousUnited States
  • Brontosaurus Marsh, 1879 SauropodomorphaLate JurassicUnited States
  • Brontotholus Woodruff et al., 2025 PachycephalosauriaLate CretaceousUnited States
  • Bruhathkayosaurus Yadagiri & Ayyasami, 1987 SauropodomorphaLate CretaceousIndia
  • Buitreraptor Makovicky et al., 2005 TheropodaLate CretaceousArgentina
  • Burianosaurus Madzia et al., 2017 OrnithopodaLate CretaceousCzechia
  • Buriolestes Cabreira et al., 2016 SauropodomorphaLate TriassicBrazil
  • Bustingorrytitan Simón & Salgado, 2023 SauropodomorphaLate CretaceousArgentina
  • Byronosaurus Norell et al., 2000 TheropodaLate CretaceousMongolia

C

  • Caenagnathasia Currie et al., 1993 TheropodaLate CretaceousUzbekistan
  • Caenagnathus Sternberg, 1940 TheropodaLate CretaceousCanada
  • Caieiria Silva Junior et al., 2022 SauropodomorphaLate CretaceousBrazil
  • Caihong Hu et al., 2018 TheropodaLate JurassicChina
  • Calamosaurus Lydekker, 1891 TheropodaEarly CretaceousUnited Kingdom
  • Calamospondylus Nomen dubium Fox, 1866 TheropodaEarly CretaceousUnited Kingdom
  • Caletodraco Buffetaut et al., 2024 TheropodaLate CretaceousFrance
  • Callovosaurus Galton, 1980 OrnithopodaMiddle JurassicUnited Kingdom
  • Calvarius Prieto-Márquez & Sellés, 2022 OrnithopodaLate CretaceousSpain
  • Camarasaurus Cope, 1877 SauropodomorphaLate JurassicUnited States
  • Camarillasaurus Sánchez-Hernández & Benton, 2014 TheropodaEarly CretaceousSpain
  • Camelotia Galton, 1985 SauropodomorphaLate TriassicUnited Kingdom
  • Campananeyen Lerzo et al., 2025 SauropodomorphaLate CretaceousArgentina
  • Camposaurus Hunt et al., 1998 TheropodaLate TriassicUnited States
  • Camptosaurus Marsh, 1885 OrnithopodaLate JurassicUnited States
  • Campylodoniscus Kuhn, 1961 SauropodomorphaLate CretaceousArgentina
  • Canardia Prieto-Márquez et al., 2013 OrnithopodaLate CretaceousFrance
  • Carcharodontosaurus Stromer, 1931 TheropodaLate CretaceousMorocco
  • Cardiodon Nomen dubium Owen, 1841 SauropodomorphaMiddle JurassicUnited Kingdom
  • Cariocecus Bertozzo et al., 2025 OrnithopodaEarly CretaceousPortugal
  • Carnotaurus Bonaparte, 1985 TheropodaLate CretaceousArgentina
  • Caseosaurus Disputed Hunt et al., 1998 HerrerasauriaLate TriassicUnited States
  • Cathartesaura Gallina & Apesteguía, 2005 SauropodomorphaLate CretaceousArgentina
  • Caudipteryx Ji et al., 1998 TheropodaEarly CretaceousChina
  • Cedarosaurus Tidwell et al., 1999 SauropodomorphaEarly CretaceousUnited States
  • Cedarpelta Carpenter et al., 2001 ThyreophoraEarly CretaceousUnited States
  • Cedrorestes Gilpin et al., 2007 OrnithopodaEarly CretaceousUnited States
  • Centrosaurus Lambe, 1905 CeratopsiaLate CretaceousCanada
  • Cerasinops Chinnery & Horner, 2007 CeratopsiaLate CretaceousUnited States
  • Ceratocaudia Natarajan et al., 2026 SauropodomorphaEarly Jurassic–Middle JurassicIndia
  • Ceratonykus Disputed Alifanov & Barsbold, 2009 TheropodaLate CretaceousMongolia
  • Ceratops Nomen dubium Marsh, 1888 CeratopsiaLate CretaceousUnited States
  • Ceratosaurus Marsh, 1884 TheropodaLate JurassicUnited States
  • Ceratosuchops Barker et al., 2021 TheropodaEarly CretaceousUnited Kingdom
  • Cetiosauriscus Huene, 1927 SauropodomorphaMiddle JurassicUnited Kingdom
  • Cetiosaurus Owen, 1841 SauropodomorphaMiddle JurassicUnited Kingdom
  • Chadititan Agnolín et al., 2025 SauropodomorphaLate CretaceousArgentina
  • Chakisaurus Nogueira et al., 2024 OrnithopodaLate CretaceousArgentina
  • Changchunsaurus Zan et al., 2005 ThescelosaurinaeEarly CretaceousChina
  • Changmiania Yang et al., 2020 OrnithopodaEarly CretaceousChina
  • Changyuraptor Han et al., 2014 TheropodaEarly CretaceousChina
  • Changzhousaurus Xu, 2026 TheropodaEarly CretaceousChina
  • Chaoyangsaurus Zhao et al., 1999 CeratopsiaLate Jurassic–Early CretaceousChina
  • Charonosaurus Godefroit et al., 2000 OrnithopodaLate CretaceousChina
  • Chasmosaurus Lambe, 1914 CeratopsiaLate CretaceousCanada
  • Chebsaurus Mahammed et al., 2005 SauropodomorphaMiddle Jurassic–Late JurassicAlgeria
  • Chenanisaurus Longrich et al., 2017 TheropodaLate CretaceousMorocco
  • Chialingosaurus Nomen dubium Young, 1959 ThyreophoraMiddle Jurassic–Late JurassicChina
  • Chiayusaurus Nomen dubium Bohlin, 1953 SauropodomorphaEarly CretaceousChina
  • Chienkosaurus Nomen dubium Young, 1942 TheropodaLate JurassicChina
  • Chilantaisaurus Hu, 1964 TheropodaEarly CretaceousChina
  • Chilesaurus Novas et al., 2015 DinosauriaLate JurassicChile
  • Chindesaurus Long & Murry, 1995 SaurischiaLate TriassicUnited States
  • Chingkankousaurus Nomen dubium Young, 1958 TheropodaLate CretaceousChina
  • Chinshakiangosaurus Dong, 1992 SauropodomorphaEarly JurassicChina
  • Chirostenotes Gilmore, 1924 TheropodaLate CretaceousCanada
  • Choconsaurus Simón et al., 2018 SauropodomorphaLate CretaceousArgentina
  • Chondrosteosaurus Owen, 1876 SauropodomorphaEarly CretaceousUnited Kingdom
  • Choyrodon Gates et al., 2018 OrnithopodaEarly CretaceousMongolia
  • Chromogisaurus Ezcurra, 2010 SauropodomorphaLate TriassicArgentina
  • Chuandongocoelurus He, 1984 TheropodaMiddle Jurassic–Late JurassicChina
  • Chuanjiesaurus Fang et al., 2000 SauropodomorphaMiddle JurassicChina
  • Chuanqilong Han et al., 2014 ThyreophoraEarly CretaceousChina
  • Chubutisaurus del Corro, 1975 SauropodomorphaEarly Cretaceous–Late CretaceousArgentina
  • Chucarosaurus Agnolín et al., 2023 SauropodomorphaLate CretaceousArgentina
  • Chungkingosaurus Dong et al., 1983 ThyreophoraMiddle Jurassic–Late JurassicChina
  • Cienciargentina Simón & Salgado, 2025 SauropodomorphaLate CretaceousArgentina
  • Cionodon Nomen dubium Cope, 1874 OrnithopodaLate CretaceousUnited States
  • Citipati Clark et al., 2001 TheropodaLate CretaceousMongolia
  • Citipes Funston, 2020 TheropodaLate CretaceousCanada
  • Claorhynchus Nomen dubium Cope, 1892 OrnithischiaLate CretaceousUnited States
  • Claosaurus Marsh, 1890 OrnithopodaLate CretaceousUnited States
  • Clasmodosaurus Nomen dubium Ameghino, 1899 SauropodomorphaLate CretaceousArgentina
  • Coahuilaceratops Loewen et al., 2010 CeratopsiaLate CretaceousMexico
  • Coahuilasaurus Longrich et al., 2024 OrnithopodaLate CretaceousMexico
  • Coelophysis Cope, 1889 TheropodaLate TriassicUnited States
  • Coeluroides Nomen dubium Huene & Matley, 1933 TheropodaLate CretaceousIndia
  • Coelurus Marsh, 1879 TheropodaLate JurassicUnited States
  • Colepiocephale Sullivan, 2003 PachycephalosauriaLate CretaceousCanada
  • Coloradisaurus Bonaparte, 1978 SauropodomorphaLate TriassicArgentina
  • Comahuesaurus Carballido et al., 2012 SauropodomorphaEarly CretaceousArgentina
  • Compsognathus Wagner, 1861 TheropodaLate JurassicGermany
  • Compsosuchus Nomen dubium Huene & Matley, 1933 TheropodaLate CretaceousIndia
  • Comptonatus Lockwood et al., 2024 OrnithopodaEarly CretaceousUnited Kingdom
  • Concavenator Ortega et al., 2010 TheropodaEarly CretaceousSpain
  • Conchoraptor Barsbold, 1986 TheropodaLate CretaceousMongolia
  • Condorraptor Rauhut, 2005 TheropodaMiddle JurassicArgentina
  • Convolosaurus Andrzejewski et al., 2019 OrnithopodaEarly CretaceousUnited States
  • Coronosaurus Ryan et al., 2012 CeratopsiaLate CretaceousCanada
  • Corythoraptor Lü et al., 2017 TheropodaLate CretaceousChina
  • Corythosaurus Brown, 1914 OrnithopodaLate CretaceousCanada
  • Craspedodon Nomen dubium Dollo, 1883 CerapodaLate CretaceousBelgium
  • Craterosaurus Nomen dubium Seeley, 1874 ThyreophoraEarly CretaceousUnited Kingdom
  • Crichtonpelta Arbour & Currie, 2015 ThyreophoraEarly Cretaceous–Late CretaceousChina
  • Crichtonsaurus Nomen dubium Dong, 2002 ThyreophoraEarly Cretaceous–Late CretaceousChina
  • Cristatusaurus Disputed Taquet & Russell, 1998 TheropodaEarly CretaceousNiger
  • Crittendenceratops Dalman et al., 2018 CeratopsiaLate CretaceousUnited States
  • Cruxicheiros Benson & Radley, 2010 TheropodaMiddle JurassicUnited Kingdom
  • Cryolophosaurus Hammer & Hickerson, 1994 TheropodaEarly JurassicAntarctica
  • Cryptarcus Holmes et al., 2026 CeratopsiaLate CretaceousCanada
  • Cryptosaurus Nomen dubium Seeley, 1875 ThyreophoraLate JurassicUnited Kingdom
  • Cumnoria Seeley, 1888 OrnithopodaLate JurassicUnited Kingdom

D

  • Daanosaurus Ye et al., 2005 SauropodomorphaLate JurassicChina
  • Dacentrurus Lucas, 1902 ThyreophoraLate JurassicUnited Kingdom
  • Daemonosaurus Sues et al., 2011 SaurischiaLate TriassicUnited States
  • Dahalokely Farke & Sertich, 2013 TheropodaLate CretaceousMadagascar
  • Dakotadon Paul, 2008 OrnithopodaEarly CretaceousUnited States
  • Dakotaraptor DePalma et al., 2015 TheropodaLate CretaceousUnited States
  • Daliansaurus Shen et al., 2017 TheropodaEarly CretaceousChina
  • Dandakosaurus Nomen dubium Yadagiri, 1982 TheropodaEarly JurassicIndia
  • Dashanpusaurus Peng et al., 2005 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Dasosaurus Mayer et al., 2026 SauropodomorphaEarly CretaceousBrazil
  • Daspletosaurus Russell, 1970 TheropodaLate CretaceousCanada
  • Datai Xing et al., 2024 ThyreophoraLate CretaceousChina
  • Datanglong Mo et al., 2014 TheropodaEarly CretaceousChina
  • Datonglong Xu et al., 2016 OrnithopodaLate CretaceousChina
  • Datousaurus Dong & Tang, 1984 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Daurlong Wang et al., 2022 TheropodaEarly CretaceousChina
  • Daxiatitan You et al., 2008 SauropodomorphaEarly CretaceousChina
  • Deinocheirus Kielan-Jaworowska, 1969 TheropodaLate CretaceousMongolia
  • Deinodon Nomen dubium Leidy, 1856 TheropodaLate CretaceousUnited States
  • Deinonychus Ostrom, 1969 TheropodaEarly Cretaceous–Late CretaceousUnited States
  • Delapparentia Disputed Ruiz-Omeñaca, 2011 OrnithopodaEarly CretaceousSpain
  • Deltadromeus Sereno et al., 1996 TheropodaLate CretaceousMorocco
  • Demandasaurus Torcida Fernández-Baldor et al., 2011 SauropodomorphaEarly CretaceousSpain
  • Denversaurus Bakker, 1988 ThyreophoraLate CretaceousUnited States
  • Diabloceratops Kirkland & DeBlieux, 2010 CeratopsiaLate CretaceousUnited States
  • Diamantinasaurus Hocknull et al., 2009 SauropodomorphaEarly Cretaceous–Late CretaceousAustralia
  • Diclonius Nomen dubium Cope, 1876 OrnithopodaLate CretaceousUnited States
  • Dicraeosaurus Janensch, 1914 SauropodomorphaLate JurassicTanzania
  • Dilong Xu et al., 2004 TheropodaEarly CretaceousChina
  • Dilophosaurus Welles, 1970 TheropodaEarly JurassicUnited States
  • Diluvicursor Herne et al., 2018 OrnithopodaEarly CretaceousAustralia
  • Dineobellator Jasinski et al., 2020 TheropodaLate CretaceousUnited States
  • Dinevenator Disputed Jasinski & Sullivan, 2026 TheropodaLate CretaceousUnited States
  • Dinheirosaurus Bonaparte & Mateus, 1999 SauropodomorphaLate JurassicPortugal
  • Dinodocus Nomen dubium Owen, 1884 SauropodomorphaEarly CretaceousUnited Kingdom
  • Diplodocus Marsh, 1878 SauropodomorphaLate JurassicUnited States
  • Diplotomodon Nomen dubium Leidy, 1868 TheropodaLate CretaceousUnited States
  • Diuqin Porfiri et al., 2024 TheropodaLate CretaceousArgentina
  • Dolichosuchus Nomen dubium Huene, 1932 TheropodaLate TriassicGermany
  • Dongbeititan Wang et al., 2007 SauropodomorphaEarly CretaceousChina
  • Dongyangopelta Chen et al., 2013 ThyreophoraEarly Cretaceous–Late CretaceousChina
  • Dongyangosaurus Lü et al., 2008 SauropodomorphaEarly Cretaceous–Late CretaceousChina
  • Doolysaurus Jung et al., 2026 ThescelosaurinaeEarly Cretaceous–Late CretaceousSouth Korea
  • Dornraptor Baron, 2024 TheropodaEarly JurassicUnited Kingdom
  • Draconyx Mateus & Telles Antunes, 2001 OrnithopodaLate JurassicPortugal
  • Dracopelta Galton, 1980 ThyreophoraLate JurassicPortugal
  • Dracoraptor Martill et al., 2016 TheropodaLate Triassic–Early JurassicUnited Kingdom
  • Dracovenator Yates, 2005 TheropodaEarly JurassicSouth Africa
  • Dreadnoughtus Lacovara et al., 2014 SauropodomorphaLate CretaceousArgentina
  • Dromaeosauroides Christiansen & Bonde, 2003 TheropodaEarly CretaceousDenmark
  • Dromaeosaurus Matthew & Brown, 1922 TheropodaLate CretaceousCanada
  • Dromiceiomimus Russell, 1972 TheropodaLate CretaceousCanada
  • Drusilasaura Navarrete et al., 2011 SauropodomorphaLate CretaceousArgentina
  • Dryosaurus Marsh, 1894 OrnithopodaLate JurassicUnited States
  • Dryptosauroides Nomen dubium Huene & Matley, 1933 TheropodaLate CretaceousIndia
  • Dryptosaurus Marsh, 1877 TheropodaLate CretaceousUnited States
  • Dubreuillosaurus Allain, 2005 TheropodaMiddle JurassicFrance
  • Duonychus Kobayashi et al., 2025 TheropodaLate CretaceousMongolia
  • Duriatitan Barrett et al., 2010 SauropodomorphaLate JurassicUnited Kingdom
  • Duriavenator Benson, 2008 TheropodaMiddle JurassicUnited Kingdom
  • Dynamoterror McDonald et al., 2018 TheropodaLate CretaceousUnited States
  • Dyoplosaurus Parks, 1924 ThyreophoraLate CretaceousCanada
  • Dysalotosaurus Virchow, 1919 OrnithopodaLate JurassicTanzania
  • Dysganus Nomen dubium Cope, 1876 CeratopsiaLate CretaceousUnited States
  • Dyslocosaurus McIntosh et al., 1992 SauropodomorphaLate JurassicUnited States
  • Dystrophaeus Cope, 1877 SauropodomorphaLate JurassicUnited States
  • Dzharacursor Averianov & Sues, 2024 TheropodaLate CretaceousUzbekistan
  • Dzharaonyx Averianov & Sues, 2022 TheropodaLate CretaceousUzbekistan
  • Dzharatitanis Averianov & Sues, 2021 SauropodomorphaLate CretaceousUzbekistan

E

  • Echinodon Owen, 1861 HeterodontosauridaeEarly CretaceousUnited Kingdom
  • Edmontonia Sternberg, 1928 ThyreophoraLate CretaceousCanada
  • Edmontosaurus Lambe, 1917 OrnithopodaLate CretaceousCanada
  • Efraasia Galton, 1973 SauropodomorphaLate TriassicGermany
  • Einiosaurus Sampson, 1995 CeratopsiaLate CretaceousUnited States
  • Ekrixinatosaurus Calvo et al., 2004 TheropodaLate CretaceousArgentina
  • Elaltitan Mannion & Otero, 2012 SauropodomorphaLate CretaceousArgentina
  • Elaphrosaurus Janensch, 1920 TheropodaLate JurassicTanzania
  • Elemgasem Baiano et al., 2022 TheropodaLate CretaceousArgentina
  • Elmisaurus Osmólska, 1981 TheropodaLate CretaceousMongolia
  • Elopteryx Disputed Andrews, 1913 TheropodaLate CretaceousRomania
  • Elrhazosaurus Galton, 2009 OrnithopodaEarly CretaceousNiger
  • Emausaurus Haubold, 1990 ThyreophoraEarly JurassicGermany
  • Embasaurus Nomen dubium Riabinin, 1931 TheropodaEarly CretaceousKazakhstan
  • Emiliasaura Coria et al., 2024 OrnithopodaEarly CretaceousArgentina
  • Enigmacursor Maidment & Barrett, 2025 NeornithischiaLate JurassicUnited States
  • Enigmosaurus Barsbold, 1983 TheropodaLate CretaceousMongolia
  • Eoabelisaurus Pol & Rauhut, 2012 TheropodaMiddle JurassicArgentina
  • Eocarcharia Sereno & Brusatte, 2008 TheropodaEarly CretaceousNiger
  • Eocursor Butler et al., 2007 OrnithischiaEarly JurassicSouth Africa
  • Eodromaeus Martínez et al., 2011 TheropodaLate TriassicArgentina
  • Eolambia Kirkland, 1998 OrnithopodaLate CretaceousUnited States
  • Eomamenchisaurus Lü et al., 2008 SauropodomorphaMiddle JurassicChina
  • Eoneophron Atkins-Weltman et al., 2024 TheropodaLate CretaceousUnited States
  • Eopinacosaurus Penkalski, 2026 ThyreophoraLate CretaceousChina
  • Eoraptor Sereno et al., 1993 SauropodomorphaLate TriassicArgentina
  • Eosinopteryx Disputed Godefroit et al., 2013 TheropodaMiddle Jurassic–Late JurassicChina
  • Eotrachodon Prieto-Márquez et al., 2016 OrnithopodaLate CretaceousUnited States
  • Eotriceratops Wu et al., 2007 CeratopsiaLate CretaceousCanada
  • Eotyrannus Hutt et al., 2001 TheropodaEarly CretaceousUnited Kingdom
  • Eousdryosaurus Escaso et al., 2014 OrnithopodaLate JurassicPortugal
  • Epachthosaurus Powell, 1990 SauropodomorphaLate CretaceousArgentina
  • Epichirostenotes Sullivan et al., 2011 TheropodaLate CretaceousCanada
  • Epidexipteryx Zhang et al., 2008 TheropodaMiddle JurassicChina
  • Equijubus You et al., 2003 OrnithopodaEarly CretaceousChina
  • Erectopus Huene, 1923 TheropodaEarly CretaceousFrance
  • Erketu Ksepka & Norell, 2006 SauropodomorphaLate CretaceousMongolia
  • Erliansaurus Xu et al., 2002 TheropodaLate CretaceousChina
  • Erlikosaurus Barsbold & Perle, 1980 TheropodaLate CretaceousMongolia
  • Erythrovenator Müller, 2021 TheropodaLate TriassicBrazil
  • Eshanosaurus Xu et al., 2001 SaurischiaEarly JurassicChina
  • Eucamerotus Blows, 1995 SauropodomorphaEarly CretaceousUnited Kingdom
  • Eucercosaurus Nomen dubium Seeley, 1879 OrnithopodaEarly CretaceousUnited Kingdom
  • Eucnemesaurus Disputed Van Hoepen, 1920 SauropodomorphaLate TriassicSouth Africa
  • Euhelopus Romer, 1956 SauropodomorphaEarly CretaceousChina
  • Euoplocephalus Lambe, 1910 ThyreophoraLate CretaceousCanada
  • Europasaurus Sander et al., 2006 SauropodomorphaLate JurassicGermany
  • Europatitan Torcida Fernández-Baldor et al., 2017 SauropodomorphaEarly CretaceousSpain
  • Europelta Kirkland et al., 2013 ThyreophoraEarly CretaceousSpain
  • Euskelosaurus Nomen dubium Huxley, 1866 SauropodomorphaLate TriassicSouth Africa
  • Eustreptospondylus Walker, 1964 TheropodaMiddle JurassicUnited Kingdom

F

  • Fabrosaurus Nomen dubium Ginsburg, 1964 OrnithischiaEarly JurassicLesotho
  • Falcarius Kirkland et al., 2005 TheropodaEarly CretaceousUnited States
  • Ferenceratops Maidment et al., 2026 CerapodaLate CretaceousRomania
  • Ferganasaurus Alifanov & Averianov, 2003 SauropodomorphaMiddle JurassicKyrgyzstan
  • Ferganocephale Averianov et al., 2005 OrnithischiaMiddle JurassicKyrgyzstan
  • Ferrisaurus Arbour & Evans, 2019 CeratopsiaLate CretaceousCanada
  • Fona Avrahami et al., 2024 ThescelosaurinaeLate CretaceousUnited States
  • Foraminacephale Schott & Evans, 2016 PachycephalosauriaLate CretaceousCanada
  • Foskeia Dieudonné et al., 2026 OrnithopodaEarly CretaceousSpain
  • Fosterovenator Dalman, 2014 TheropodaLate JurassicUnited States
  • Fostoria Bell et al., 2019 OrnithopodaLate CretaceousAustralia
  • Fruitadens Butler et al., 2010 HeterodontosauridaeLate JurassicUnited States
  • Fujianvenator Xu et al., 2023 TheropodaLate JurassicChina
  • Fukuiraptor Azuma & Currie, 2000 TheropodaEarly CretaceousJapan
  • Fukuisaurus Kobayashi & Azuma, 2003 OrnithopodaEarly CretaceousJapan
  • Fukuititan Azuma & Shibata, 2010 SauropodomorphaEarly CretaceousJapan
  • Fukuivenator Azuma et al., 2016 TheropodaEarly CretaceousJapan
  • Fulengia Nomen dubium Carroll & Galton, 1977 SauropodomorphaEarly JurassicChina
  • Fulgurotherium Nomen dubium Huene, 1932 OrnithopodaLate CretaceousAustralia
  • Furcatoceratops Ishikawa et al., 2023 CeratopsiaLate CretaceousUnited States
  • Fushanosaurus Wang et al., 2019 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Fusuisaurus Mo et al., 2006 SauropodomorphaEarly CretaceousChina
  • Futalognkosaurus Calvo et al., 2007 SauropodomorphaLate CretaceousArgentina
  • Fylax Prieto-Márquez & Carrera Farias, 2021 OrnithopodaLate CretaceousSpain

G

  • Galeamopus Tschopp et al., 2015 SauropodomorphaLate JurassicUnited States
  • Galleonosaurus Herne et al., 2019 OrnithopodaEarly CretaceousAustralia
  • Gallimimus Osmólska et al., 1972 TheropodaLate CretaceousMongolia
  • Galvesaurus Barco et al., 2005 SauropodomorphaLate JurassicSpain
  • Gandititan Han et al., 2024 SauropodomorphaLate CretaceousChina
  • Gannansaurus Lü et al., 2013 SauropodomorphaLate CretaceousChina
  • Ganzhousaurus Wang et al., 2013 TheropodaLate CretaceousChina
  • Gargoyleosaurus Carpenter et al., 1998 ThyreophoraLate JurassicUnited States
  • Garrigatitan Díez Díaz et al., 2021 SauropodomorphaLate CretaceousFrance
  • Garudimimus Barsbold, 1981 TheropodaLate CretaceousMongolia
  • Garumbatitan Mocho et al., 2023 SauropodomorphaEarly CretaceousSpain
  • Gasosaurus Dong & Tang, 1985 TheropodaMiddle Jurassic–Late JurassicChina
  • Gasparinisaura Coria & Salgado, 1996 OrnithopodaLate CretaceousArgentina
  • Gastonia Kirkland, 1998 ThyreophoraEarly CretaceousUnited States
  • Geminiraptor Senter et al., 2010 TheropodaEarly CretaceousUnited States
  • Genusaurus Accarie et al., 1995 TheropodaEarly CretaceousFrance
  • Genyodectes Woodward, 1901 TheropodaEarly CretaceousArgentina
  • Geranosaurus Nomen dubium Broom, 1911 HeterodontosauridaeEarly JurassicSouth Africa
  • Gideonmantellia Ruiz-Omeñaca et al., 2012 OrnithopodaEarly CretaceousSpain
  • Giganotosaurus Coria & Salgado, 1995 TheropodaLate CretaceousArgentina
  • Gigantoraptor Xu et al., 2007 TheropodaLate CretaceousChina
  • Gigantosaurus Nomen dubium Seeley, 1869 SauropodomorphaLate JurassicUnited Kingdom
  • Gigantoscelus Nomen dubium Van Hoepen, 1916 SauropodomorphaEarly JurassicSouth Africa
  • Gigantspinosaurus Ouyang, 1992 ThyreophoraMiddle Jurassic–Late JurassicChina
  • Gilmoreosaurus Brett-Surman, 1979 OrnithopodaLate CretaceousChina
  • Giraffatitan Paul, 1988 SauropodomorphaLate JurassicTanzania
  • Glacialisaurus Smith & Pol, 2007 SauropodomorphaEarly JurassicAntarctica
  • Glishades Nomen dubium Prieto-Márquez, 2010 OrnithopodaLate CretaceousUnited States
  • Glyptodontopelta Ford, 2000 ThyreophoraLate CretaceousUnited States
  • Gnathovorax Pacheco et al., 2019 HerrerasauridaeLate TriassicBrazil
  • Gobihadros Tsogtbaatar et al., 2019 OrnithopodaLate CretaceousMongolia
  • Gobiraptor Lee et al., 2019 TheropodaLate CretaceousMongolia
  • Gobisaurus Vickaryous et al., 2001 ThyreophoraEarly CretaceousChina
  • Gobititan You et al., 2003 SauropodomorphaEarly CretaceousChina
  • Gobivenator Tsuihiji et al., 2014 TheropodaLate CretaceousMongolia
  • Gojirasaurus Nomen dubium Carpenter, 1997 TheropodaLate TriassicUnited States
  • Gondwanatitan Kellner & Azevedo, 1999 SauropodomorphaLate CretaceousBrazil
  • Gongbusaurus Nomen dubium Dong et al., 1983 OrnithischiaMiddle Jurassic–Late JurassicChina
  • Gongpoquansaurus You et al., 2014 OrnithopodaEarly CretaceousChina
  • Gongshuilong Yao et al., 2026 OrnithopodaLate CretaceousChina
  • Gongxianosaurus He et al., 1998 SauropodomorphaEarly JurassicChina
  • Gonkoken Alarcón-Muñoz et al., 2023 OrnithopodaLate CretaceousChile
  • Gorgosaurus Lambe, 1914 TheropodaLate CretaceousCanada
  • Goyocephale Perle et al., 1982 PachycephalosauriaLate CretaceousMongolia
  • Graciliceratops Sereno, 2000 CeratopsiaLate CretaceousMongolia
  • Graciliraptor Xu & Wang, 2004 TheropodaEarly CretaceousChina
  • Gremlin Ryan et al., 2023 CeratopsiaLate CretaceousCanada
  • Gryphoceratops Ryan et al., 2012 CeratopsiaLate CretaceousCanada
  • Gryponyx Disputed Broom, 1911 SauropodomorphaEarly JurassicSouth Africa
  • Gryposaurus Lambe, 1914 OrnithopodaLate CretaceousCanada
  • Guaibasaurus Bonaparte et al., 1999 SauropodomorphaLate TriassicBrazil
  • Gualicho Apesteguía et al., 2016 TheropodaLate CretaceousArgentina
  • Guanlong Xu et al., 2006 TheropodaMiddle Jurassic–Late JurassicChina
  • Guemesia Agnolín et al., 2021 TheropodaLate CretaceousArgentina

H

  • Hadrosaurus Leidy, 1858 OrnithopodaLate CretaceousUnited States
  • Haestasaurus Upchurch et al., 2015 SauropodomorphaEarly CretaceousUnited Kingdom
  • Hagryphus Zanno & Sampson, 2005 TheropodaLate CretaceousUnited States
  • Halszkaraptor Cau et al., 2017 TheropodaLate CretaceousMongolia
  • Halticosaurus Nomen dubium Huene, 1908 TheropodaLate TriassicGermany
  • Hamititan Wang et al., 2021 SauropodomorphaEarly CretaceousChina
  • Hanssuesia Disputed Sullivan, 2003 PachycephalosauriaLate CretaceousCanada
  • Haolong Huang et al., 2026 OrnithopodaEarly CretaceousChina
  • Haplocanthosaurus Hatcher, 1903 SauropodomorphaLate JurassicUnited States
  • Haplocheirus Choiniere et al., 2010 TheropodaMiddle Jurassic–Late JurassicChina
  • Harenadraco Lee et al., 2023 TheropodaLate CretaceousMongolia
  • Harpymimus Barsbold & Perle, 1984 TheropodaEarly CretaceousMongolia
  • Haya Makovicky et al., 2011 ThescelosaurinaeLate CretaceousMongolia
  • Heishansaurus Nomen dubium Bohlin, 1953 ThyreophoraEarly CretaceousChina
  • Helioceratops Jin et al., 2009 CeratopsiaEarly CretaceousChina
  • Heptasteornis Nomen dubium Harrison & Walker, 1975 TheropodaLate CretaceousRomania
  • Herrerasaurus Reig, 1963 HerrerasauridaeLate TriassicArgentina
  • Hesperonychus Longrich & Currie, 2009 TheropodaLate CretaceousCanada
  • Hesperonyx Rotatori et al., 2023 OrnithopodaLate JurassicPortugal
  • Hesperornithoides Hartman et al., 2019 TheropodaLate JurassicUnited States
  • Hesperosaurus Carpenter et al., 2001 ThyreophoraLate Jurassic–Early CretaceousUnited States
  • Heterodontosaurus Crompton & Charig, 1962 HeterodontosaurinaeEarly JurassicSouth Africa
  • Hexing Jin et al., 2012 TheropodaEarly CretaceousChina
  • Hexinlusaurus Barrett et al., 2005 NeornithischiaMiddle Jurassic–Late JurassicChina
  • Heyuannia Lü, 2002 TheropodaLate CretaceousChina
  • Hierosaurus Nomen dubium Wieland, 1909 ThyreophoraLate CretaceousUnited States
  • Hippodraco McDonald et al., 2010 OrnithopodaEarly CretaceousUnited States
  • Histriasaurus Dalla Vecchia, 1998 SauropodomorphaEarly CretaceousCroatia
  • Homalocephale Maryańska & Osmólska, 1974 PachycephalosauriaLate CretaceousMongolia
  • Hoplitosaurus Lucas, 1902 ThyreophoraEarly CretaceousUnited States
  • Horshamosaurus Nomen dubium Blows, 2015 ThyreophoraEarly CretaceousUnited Kingdom
  • Huabeisaurus Pang & Cheng, 2000 SauropodomorphaLate CretaceousChina
  • Huadanosaurus Qiu et al., 2025 TheropodaEarly CretaceousChina
  • Hualianceratops Han et al., 2015 CeratopsiaMiddle Jurassic–Late JurassicChina
  • Huallasaurus Rozadilla et al., 2021 OrnithopodaLate CretaceousArgentina
  • Huanansaurus Lü et al., 2015 TheropodaLate CretaceousChina
  • Huanghetitan You et al., 2006 SauropodomorphaEarly CretaceousChina
  • Huangshanlong Huang et al., 2014 SauropodomorphaMiddle JurassicChina
  • Huashanosaurus Mo et al., 2025 SauropodomorphaEarly Jurassic–Middle JurassicChina
  • Huaxiagnathus Hwang et al., 2004 TheropodaEarly CretaceousChina
  • Huaxiazhoulong Zhu et al., 2025 ThyreophoraLate CretaceousChina
  • Huayangosaurus Dong et al., 1982 ThyreophoraMiddle Jurassic–Late JurassicChina
  • Huayracursor Hechenleitner et al., 2025 SauropodomorphaLate TriassicArgentina
  • Hudiesaurus Dong, 1997 SauropodomorphaLate JurassicChina
  • Huehuecanauhtlus Ramírez-Velasco et al., 2012 OrnithopodaLate CretaceousMexico
  • Huinculsaurus Baiano et al., 2020 TheropodaLate CretaceousArgentina
  • Hulsanpes Osmólska, 1982 TheropodaLate CretaceousMongolia
  • Hungarosaurus Ősi, 2005 ThyreophoraLate CretaceousHungary
  • Hylaeosaurus Mantell, 1833 ThyreophoraEarly CretaceousUnited Kingdom
  • Hypacrosaurus Brown, 1913 OrnithopodaLate CretaceousCanada
  • Hypnovenator Kubota et al., 2024 TheropodaEarly CretaceousJapan
  • Hypselosaurus Nomen dubium Matheron, 1869 SauropodomorphaLate CretaceousFrance
  • Hypselospinus Norman, 2010 OrnithopodaEarly CretaceousUnited Kingdom
  • Hypsibema Nomen dubium Cope, 1869 OrnithopodaLate CretaceousUnited States
  • Hypsilophodon Huxley, 1870 OrnithopodaEarly CretaceousUnited Kingdom
  • Hypsirhophus Disputed Cope, 1878 ThyreophoraLate Jurassic–Early CretaceousUnited States

I

  • Iani Zanno et al., 2023 OrnithopodaLate CretaceousUnited States
  • Iberospinus Mateus & Estraviz-López, 2022 TheropodaEarly CretaceousPortugal
  • Ibirania Navarro et al., 2022 SauropodomorphaLate CretaceousBrazil
  • Ichthyovenator Allain et al., 2012 TheropodaEarly CretaceousLaos
  • Igai Gorscak et al., 2022 SauropodomorphaLate CretaceousEgypt
  • Ignavusaurus Knoll, 2010 SauropodomorphaEarly JurassicLesotho
  • Iguanacolossus McDonald et al., 2010 OrnithopodaEarly CretaceousUnited States
  • Iguanodon Mantell, 1825 OrnithopodaEarly CretaceousBelgium
  • Iliosuchus Nomen dubium Huene, 1932 TheropodaMiddle JurassicUnited Kingdom
  • Ilokelesia Coria & Salgado, 2000 TheropodaLate CretaceousArgentina
  • Imperobator Ely & Case, 2019 TheropodaLate CretaceousAntarctica
  • Inawentu Filippi et al., 2024 SauropodomorphaLate CretaceousArgentina
  • Incisivosaurus Xu et al., 2002 TheropodaEarly CretaceousChina
  • Indosaurus Disputed Huene & Matley, 1933 TheropodaLate CretaceousIndia
  • Indosuchus Disputed Huene & Matley, 1933 TheropodaLate CretaceousIndia
  • Infernogallus Funston et al., 2026 TheropodaLate CretaceousUnited States
  • Ingentia Apaldetti et al., 2018 SauropodomorphaLate TriassicArgentina
  • Inosaurus Nomen dubium Lapparent, 1960 TheropodaMiddle JurassicNiger
  • Invictarx McDonald & Wolfe, 2018 ThyreophoraLate CretaceousUnited States
  • Invictibellatrix Morrison et al., 2026 TheropodaEarly CretaceousUnited Kingdom
  • Irisosaurus Peyre de Fabrègues et al., 2020 SauropodomorphaEarly JurassicChina
  • Irritator Martill et al., 1996 TheropodaEarly CretaceousBrazil
  • Isaberrysaura Salgado et al., 2017 ThyreophoraMiddle JurassicArgentina
  • Isanosaurus Buffetaut et al., 2000 SauropodomorphaLate Triassic–Late JurassicThailand
  • Isasicursor Novas et al., 2019 OrnithopodaLate CretaceousArgentina
  • Ischioceratops He et al., 2015 CeratopsiaLate CretaceousChina
  • Isisaurus Jain & Bandyopadhyay, 1997 SauropodomorphaLate CretaceousIndia
  • Issi Beccari et al., 2021 SauropodomorphaLate TriassicGreenland
  • Istiorachis Lockwood et al., 2025 OrnithopodaEarly CretaceousUnited Kingdom
  • Itapeuasaurus Lindoso et al., 2019 SauropodomorphaLate CretaceousBrazil
  • Itemirus Kurzanov, 1976 TheropodaLate CretaceousUzbekistan
  • Iuticosaurus Nomen dubium Le Loeuff, 1993 SauropodomorphaEarly CretaceousUnited Kingdom
  • Iyuku Forster et al., 2023 OrnithopodaEarly CretaceousSouth Africa

J

  • Jaculinykus Kubo et al., 2023 TheropodaLate CretaceousMongolia
  • Jainosaurus Hunt et al., 1994 SauropodomorphaLate CretaceousIndia
  • Jakapil Riguetti et al., 2022 ThyreophoraLate CretaceousArgentina
  • Jaklapallisaurus Novas et al., 2010 SauropodomorphaLate TriassicIndia
  • Janenschia Wild, 1991 SauropodomorphaLate Jurassic–Early CretaceousTanzania
  • Jaxartosaurus Riabinin, 1937 OrnithopodaLate CretaceousKazakhstan
  • Jeholornis Zhou & Zhang, 2002 TheropodaEarly CretaceousChina
  • Jeholosaurus Xu et al., 2000 JeholosauridaeEarly CretaceousChina
  • Jeyawati McDonald et al., 2010 OrnithopodaLate CretaceousUnited States
  • Jian Zhou et al., 2026 TheropodaEarly CretaceousChina
  • Jianchangosaurus Pu et al., 2013 TheropodaEarly CretaceousChina
  • Jiangjunosaurus Jia et al., 2007 ThyreophoraMiddle Jurassic–Late JurassicChina
  • Jiangshanosaurus Tang et al., 2001 SauropodomorphaEarly Cretaceous–Late CretaceousChina
  • Jiangxisaurus Wei et al., 2013 TheropodaLate CretaceousChina
  • Jiangxititan Mo et al., 2023 SauropodomorphaLate CretaceousChina
  • Jianianhualong Xu et al., 2017 TheropodaEarly CretaceousChina
  • Jinbeisaurus Wu et al., 2020 TheropodaLate CretaceousChina
  • Jinchuanloong Li et al., 2025 SauropodomorphaMiddle JurassicChina
  • Jinfengopteryx Ji et al., 2005 TheropodaEarly CretaceousChina
  • Jingiella Ren et al., 2025 SauropodomorphaLate JurassicChina
  • Jingshanosaurus Zhang & Yang, 1995 SauropodomorphaEarly JurassicChina
  • Jintasaurus You & Li, 2009 OrnithopodaEarly CretaceousChina
  • Jinyunpelta Zheng et al., 2018 ThyreophoraEarly Cretaceous–Late CretaceousChina
  • Jinzhousaurus Wang & Xu, 2001 OrnithopodaEarly CretaceousChina
  • Jiutaisaurus Wu et al., 2006 SauropodomorphaEarly CretaceousChina
  • Joaquinraptor Ibiricu et al., 2025 TheropodaLate CretaceousArgentina
  • Jobaria Sereno et al., 1999 SauropodomorphaMiddle Jurassic–Late JurassicNiger
  • Judiceratops Longrich, 2013 CeratopsiaLate CretaceousUnited States
  • Juratyrant Brusatte & Benson, 2013 TheropodaLate JurassicUnited Kingdom
  • Juravenator Göhlich & Chiappe, 2006 TheropodaLate JurassicGermany

K

  • Kaatedocus Tschopp & Mateus, 2012 SauropodomorphaLate JurassicUnited States
  • Kaijiangosaurus Disputed He, 1984 TheropodaMiddle Jurassic–Late JurassicChina
  • Kaijutitan Filippi et al., 2019 SauropodomorphaLate CretaceousArgentina
  • Kakuru Nomen dubium Molnar & Pledge, 1980 TheropodaEarly CretaceousAustralia
  • Kamuysaurus Kobayashi et al., 2019 OrnithopodaLate CretaceousJapan
  • Kangnasaurus Disputed Haughton, 1915 OrnithopodaLate CretaceousSouth Africa
  • Kank Motta et al., 2026 TheropodaLate CretaceousArgentina
  • Kansaignathus Averianov & Lopatin, 2021 TheropodaLate CretaceousTajikistan
  • Karongasaurus Gomani, 2005 SauropodomorphaEarly CretaceousMalawi
  • Katepensaurus Ibiricu et al., 2013 SauropodomorphaLate CretaceousArgentina
  • Kayentavenator Disputed Gay, 2010 TheropodaEarly JurassicUnited States
  • Kayrasaurus Liao et al., 2026 TheropodaEarly CretaceousChina
  • Kazaklambia Bell & Brink, 2013 OrnithopodaLate CretaceousKazakhstan
  • Kelmayisaurus Dong, 1973 TheropodaEarly CretaceousChina
  • Kelumapusaura Rozadilla et al., 2021 OrnithopodaLate CretaceousArgentina
  • Kentrosaurus Hennig, 1915 ThyreophoraLate JurassicTanzania
  • Kerberosaurus Bolotsky & Godefroit, 2004 OrnithopodaLate CretaceousRussia
  • Khaan Clark et al., 2001 TheropodaLate CretaceousMongolia
  • Khankhuuluu Voris et al., 2025 TheropodaLate CretaceousMongolia
  • Kholumolumo Peyre de Fabrègues & Allain, 2019 SauropodomorphaLate TriassicLesotho
  • Khulsanurus Averianov & Lopatin, 2021 TheropodaLate CretaceousMongolia
  • Kileskus Averianov et al., 2010 TheropodaMiddle JurassicRussia
  • Kinnareemimus Buffetaut et al., 2009 TheropodaEarly CretaceousThailand
  • Kiyacursor Averianov et al., 2024 TheropodaEarly CretaceousRussia
  • Klamelisaurus Zhao, 1993 SauropodomorphaMiddle JurassicChina
  • Kol Turner et al., 2009 TheropodaLate CretaceousMongolia
  • Koleken Pol et al., 2024 TheropodaLate CretaceousArgentina
  • Koparion Nomen dubium Chure, 1994 TheropodaLate JurassicUnited States
  • Koreaceratops Lee et al., 2011 CeratopsiaEarly CretaceousSouth Korea
  • Koreanosaurus Huh et al., 2011 OrodrominaeLate CretaceousSouth Korea
  • Koshisaurus Shibata & Azuma, 2015 OrnithopodaEarly CretaceousJapan
  • Kosmoceratops Sampson et al., 2010 CeratopsiaLate CretaceousUnited States
  • Kotasaurus Yadagiri, 1988 SauropodomorphaEarly JurassicIndia
  • Kritosaurus Brown, 1910 OrnithopodaLate CretaceousUnited States
  • Kryptohadros Magyar et al., 2026 OrnithopodaLate CretaceousRomania
  • Kryptops Disputed Sereno & Brusatte, 2008 TheropodaEarly CretaceousNiger
  • Kulceratops Nomen dubium Nessov, 1995 CeratopsiaEarly CretaceousUzbekistan
  • Kulindadromeus Godefroit et al., 2014 NeornithischiaMiddle JurassicRussia
  • Kunbarrasaurus Leahey et al., 2015 ThyreophoraEarly CretaceousAustralia
  • Kundurosaurus Disputed Godefroit et al., 2012 OrnithopodaLate CretaceousRussia
  • Kuru Napoli et al., 2021 TheropodaLate CretaceousMongolia
  • Kurupi Iori et al., 2021 TheropodaLate CretaceousBrazil
  • Kuszholia Nessov, 1992 TheropodaLate CretaceousUzbekistan

L

  • Labocania Molnar, 1974 TheropodaLate CretaceousMexico
  • Laevisuchus Huene & Matley, 1933 TheropodaLate CretaceousIndia
  • Laiyangosaurus Zhang et al., 2019 OrnithopodaLate CretaceousChina
  • Lajasvenator Coria et al., 2020 TheropodaEarly CretaceousArgentina
  • Lambeosaurus Parks, 1923 OrnithopodaLate CretaceousCanada
  • Lametasaurus Nomen dubium Matley, 1924 DinosauriaLate CretaceousIndia
  • Lamplughsaura Kutty et al., 2007 SauropodomorphaEarly JurassicIndia
  • Lanzhousaurus You et al., 2005 OrnithopodaEarly CretaceousChina
  • Laosaurus Nomen dubium Marsh, 1878 NeornithischiaLate JurassicUnited States
  • Lapampasaurus Coria et al., 2012 OrnithopodaLate CretaceousArgentina
  • Laplatasaurus Huene, 1929 SauropodomorphaLate CretaceousArgentina
  • Lapparentosaurus Bonaparte, 1986 SauropodomorphaMiddle JurassicMadagascar
  • Laquintasaura Barrett et al., 2014 OrnithischiaEarly JurassicVenezuela
  • Latenivenatrix Disputed van der Reest & Currie, 2017 TheropodaLate CretaceousCanada
  • Latirhinus Prieto-Márquez & Serrano-Brañas, 2012 OrnithopodaLate CretaceousMexico
  • Lavocatisaurus Canudo et al., 2018 SauropodomorphaEarly CretaceousArgentina
  • Leaellynasaura Rich & Vickers-Rich, 1989 OrnithopodaEarly CretaceousAustralia
  • Ledumahadi McPhee et al., 2018 SauropodomorphaEarly JurassicSouth Africa
  • Leinkupal Gallina et al., 2014 SauropodomorphaEarly CretaceousArgentina
  • Leonerasaurus Pol et al., 2011 SauropodomorphaEarly JurassicArgentina
  • Lepidus Nesbitt & Ezcurra, 2015 TheropodaLate TriassicUnited States
  • Leptoceratops Brown, 1914 CeratopsiaLate CretaceousCanada
  • Leptorhynchos Longrich et al., 2013 TheropodaLate CretaceousUnited States
  • Leshansaurus Li et al., 2009 TheropodaMiddle Jurassic–Late JurassicChina
  • Lesothosaurus Galton, 1978 OrnithischiaEarly JurassicLesotho
  • Lessemsaurus Bonaparte, 1999 SauropodomorphaLate TriassicArgentina
  • Levnesovia Sues & Averianov, 2009 OrnithopodaLate CretaceousUzbekistan
  • Lexovisaurus Nomen dubium Hoffstetter, 1957 ThyreophoraMiddle JurassicUnited Kingdom
  • Leyesaurus Apaldetti et al., 2011 SauropodomorphaEarly JurassicArgentina
  • Liaoceratops Xu et al., 2002 CeratopsiaEarly CretaceousChina
  • Liaoningosaurus Xu et al., 2001 ThyreophoraEarly CretaceousChina
  • Liaoningotitan Zhou et al., 2018 SauropodomorphaEarly CretaceousChina
  • Liaoningvenator Shen et al., 2017 TheropodaEarly CretaceousChina
  • Ligabueino Bonaparte, 1996 TheropodaEarly CretaceousArgentina
  • Ligabuesaurus Bonaparte et al., 2006 SauropodomorphaEarly CretaceousArgentina
  • Liliensternus Welles, 1984 TheropodaLate TriassicGermany
  • Limaysaurus Salgado et al., 2004 SauropodomorphaLate CretaceousArgentina
  • Limusaurus Xu et al., 2009 TheropodaMiddle Jurassic–Late JurassicChina
  • Lingwulong Xu et al., 2018 SauropodomorphaEarly Jurassic–Middle JurassicChina
  • Lingyuanosaurus Yao et al., 2019 TheropodaEarly CretaceousChina
  • Linhenykus Xu et al., 2011 TheropodaLate CretaceousChina
  • Linheraptor Xu et al., 2010 TheropodaLate CretaceousChina
  • Linhevenator Xu et al., 2011 TheropodaLate CretaceousChina
  • Lirainosaurus Sanz et al., 1999 SauropodomorphaLate CretaceousSpain
  • Lishulong Zhang et al., 2024 SauropodomorphaEarly JurassicChina
  • Liubangosaurus Mo et al., 2010 SauropodomorphaEarly CretaceousChina
  • Llukalkan Gianechini et al., 2021 TheropodaLate CretaceousArgentina
  • Lohuecotitan Díez Díaz et al., 2016 SauropodomorphaLate CretaceousSpain
  • Lokiceratops Loewen et al., 2024 CeratopsiaLate CretaceousUnited States
  • Loncosaurus Nomen dubium Ameghino, 1899 OrnithopodaLate CretaceousArgentina
  • Lophorhothon Langston, 1960 OrnithopodaLate CretaceousUnited States
  • Lophostropheus Ezcurra & Cuny, 2007 TheropodaLate Triassic–Early JurassicFrance
  • Loricatosaurus Maidment et al., 2008 ThyreophoraMiddle JurassicUnited Kingdom
  • Loricosaurus Nomen dubium Huene, 1929 SauropodomorphaLate CretaceousArgentina
  • Losillasaurus Casanovas et al., 2001 SauropodomorphaLate JurassicSpain
  • Lourinhanosaurus Mateus, 1998 TheropodaLate JurassicPortugal
  • Lourinhasaurus Dantas et al., 1998 SauropodomorphaLate JurassicPortugal
  • Luanchuanraptor Lü et al., 2007 TheropodaLate CretaceousChina
  • Lucianovenator Martínez & Apaldetti, 2017 TheropodaLate TriassicArgentina
  • Lufengosaurus Young, 1940 SauropodomorphaEarly JurassicChina
  • Luoyanggia Lü et al., 2009 TheropodaEarly CretaceousChina
  • Lurdusaurus Taquet & Russell, 1999 OrnithopodaEarly CretaceousNiger
  • Lusotitan Antunes & Mateus, 2003 SauropodomorphaLate JurassicPortugal
  • Lusovenator Malafaia et al., 2020 TheropodaLate JurassicPortugal
  • Lycorhinus Haughton, 1924 HeterodontosaurinaeEarly JurassicSouth Africa
  • Lythronax Loewen et al., 2013 TheropodaLate CretaceousUnited States

M

  • Machairasaurus Longrich et al., 2010 TheropodaLate CretaceousChina
  • Machairoceratops Lund et al., 2016 CeratopsiaLate CretaceousUnited States
  • Macrocollum Müller et al., 2018 SauropodomorphaLate TriassicBrazil
  • Macrogryphosaurus Calvo et al., 2007 OrnithopodaLate CretaceousArgentina
  • Macrurosaurus Seeley, 1876 SauropodomorphaEarly CretaceousUnited Kingdom
  • Magnamanus Fuentes Vidarte et al., 2016 OrnithopodaEarly CretaceousSpain
  • Magnapaulia Prieto-Márquez et al., 2012 OrnithopodaLate CretaceousMexico
  • Magnosaurus Huene, 1932 TheropodaMiddle JurassicUnited Kingdom
  • Magyarosaurus Huene, 1932 SauropodomorphaLate CretaceousRomania
  • Mahakala Turner et al., 2007 TheropodaLate CretaceousMongolia
  • Mahuidacursor Cruzado-Caballero et al., 2019 OrnithopodaLate CretaceousArgentina
  • Maiasaura Horner & Makela, 1979 OrnithopodaLate CretaceousUnited States
  • Maip Aranciaga Rolando et al., 2022 TheropodaLate CretaceousArgentina
  • Majungasaurus Lavocat, 1955 TheropodaLate CretaceousMadagascar
  • Malarguesaurus González Riga et al., 2009 SauropodomorphaLate CretaceousArgentina
  • Malawisaurus Jacobs et al., 1993 SauropodomorphaEarly CretaceousMalawi
  • Maleevus Nomen dubium Tumanova, 1987 ThyreophoraLate CretaceousMongolia
  • Malefica Prieto-Márquez & Wagner, 2022 OrnithopodaLate CretaceousUnited States
  • Maleriraptor Ezcurra et al., 2025 HerrerasauriaLate TriassicIndia
  • Mamenchisaurus Young, 1954 SauropodomorphaLate JurassicChina
  • Mandschurosaurus Nomen dubium Riabinin, 1930 OrnithopodaLate CretaceousChina
  • Manidens Pol et al., 2011 HeterodontosaurinaeEarly JurassicArgentina
  • Manipulonyx Averianov et al., 2025 TheropodaLate CretaceousMongolia
  • Mansourasaurus Sallam et al., 2018 SauropodomorphaLate CretaceousEgypt
  • Mantellisaurus Paul, 2007 OrnithopodaEarly CretaceousUnited Kingdom
  • Mapusaurus Coria & Currie, 2006 TheropodaLate CretaceousArgentina
  • Maraapunisaurus Carpenter, 2018 SauropodomorphaLate JurassicUnited States
  • Marmarospondylus Nomen dubium Owen, 1874 SauropodomorphaMiddle JurassicUnited Kingdom
  • Marshosaurus Madsen, 1976 TheropodaLate JurassicUnited States
  • Martharaptor Senter et al., 2012 TheropodaEarly CretaceousUnited States
  • Masiakasaurus Sampson et al., 2001 TheropodaLate CretaceousMadagascar
  • Massospondylus Owen, 1854 SauropodomorphaEarly JurassicSouth Africa
  • Matheronodon Godefroit et al., 2017 OrnithopodaLate CretaceousFrance
  • Maxakalisaurus Kellner et al., 2006 SauropodomorphaLate CretaceousBrazil
  • Mbiresaurus Griffin et al., 2022 SauropodomorphaLate TriassicZimbabwe
  • Medusaceratops Ryan et al., 2010 CeratopsiaLate CretaceousUnited States
  • Megalosaurus Mantell, 1827 TheropodaMiddle JurassicUnited Kingdom
  • Megapnosaurus Ivie et al., 2001 TheropodaEarly JurassicZimbabwe
  • Megaraptor Novas, 1998 TheropodaLate CretaceousArgentina
  • Mei Xu & Norell, 2004 TheropodaEarly CretaceousChina
  • Melanorosaurus Haughton, 1924 SauropodomorphaLate TriassicSouth Africa
  • Mendozasaurus González Riga, 2003 SauropodomorphaLate CretaceousArgentina
  • Menefeeceratops Dalman et al., 2021 CeratopsiaLate CretaceousUnited States
  • Menucocelsior Aranciaga Rolando et al., 2021 SauropodomorphaLate CretaceousArgentina
  • Meraxes Canale et al., 2022 TheropodaLate CretaceousArgentina
  • Mercuriceratops Ryan et al., 2014 CeratopsiaLate CretaceousUnited States
  • Meroktenos Peyre de Fabrègues & Allain, 2016 SauropodomorphaLate TriassicLesotho
  • Mesetasaurus Soto Núñez et al., 2026 SauropodomorphaLate CretaceousUruguay
  • Metriacanthosaurus Walker, 1964 TheropodaLate JurassicUnited Kingdom
  • Mexidracon Serrano-Brañas et al., 2025 TheropodaLate CretaceousMexico
  • Microceratus Nomen dubium Mateus, 2008 CeratopsiaLate CretaceousChina
  • Microcoelus Nomen dubium Lydekker, 1893 SauropodomorphaLate CretaceousArgentina
  • Microhadrosaurus Nomen dubium Dong, 1979 OrnithopodaLate CretaceousChina
  • Micropachycephalosaurus Dong, 1978 MarginocephaliaLate CretaceousChina
  • Microraptor Xu et al., 2000 TheropodaEarly CretaceousChina
  • Microvenator Ostrom, 1970 TheropodaEarly Cretaceous–Late CretaceousUnited States
  • Mierasaurus Royo-Torres et al., 2017 SauropodomorphaEarly CretaceousUnited States
  • Migmanychion Wang et al., 2023 TheropodaEarly CretaceousChina
  • Minimocursor Manitkoon et al., 2023 NeornithischiaLate Jurassic–Early CretaceousThailand
  • Minmi Disputed Molnar, 1980 ThyreophoraEarly CretaceousAustralia
  • Minotaurasaurus Disputed Miles & Miles, 2009 ThyreophoraLate CretaceousMongolia
  • Minqaria Longrich et al., 2024 OrnithopodaLate CretaceousMorocco
  • Miragaia Disputed Mateus et al., 2009 ThyreophoraLate JurassicPortugal
  • Mirischia Naish et al., 2004 TheropodaEarly CretaceousBrazil
  • Mnyamawamtuka Gorscak & O'Connor, 2019 SauropodomorphaEarly Cretaceous–Late CretaceousTanzania
  • Moabosaurus Britt et al., 2017 SauropodomorphaEarly CretaceousUnited States
  • Mochlodon Seeley, 1881 OrnithopodaLate CretaceousAustria
  • Mongolosaurus Gilmore, 1933 SauropodomorphaEarly CretaceousChina
  • Mongolostegus Tumanova & Alifanov, 2018 ThyreophoraEarly CretaceousMongolia
  • Monkonosaurus Nomen dubium Dong, 1990 ThyreophoraLate Jurassic–Early CretaceousChina
  • Monoclonius Nomen dubium Cope, 1876 CeratopsiaLate CretaceousUnited States
  • Monolophosaurus Zhao & Currie, 1993 TheropodaMiddle JurassicChina
  • Mononykus Perle et al., 1993 TheropodaLate CretaceousMongolia
  • Montanoceratops Sternberg, 1951 CeratopsiaLate CretaceousUnited States
  • Morelladon Gasulla et al., 2015 OrnithopodaEarly CretaceousSpain
  • Morinosaurus Sauvage, 1874 SauropodomorphaLate JurassicFrance
  • Moros Zanno et al., 2019 TheropodaLate CretaceousUnited States
  • Morrosaurus Rozadilla et al., 2016 OrnithopodaLate CretaceousAntarctica
  • Mosaiceratops Zheng et al., 2015 CeratopsiaLate CretaceousChina
  • Murusraptor Coria & Currie, 2016 TheropodaLate CretaceousArgentina
  • Musango Barrett et al., 2026 SauropodomorphaLate TriassicZimbabwe
  • Musankwa Barrett et al., 2024 SauropodomorphaLate TriassicZimbabwe
  • Mussaurus Bonaparte & Vince, 1979 SauropodomorphaEarly JurassicArgentina
  • Muttaburrasaurus Bartholomai & Molnar, 1981 OrnithopodaEarly Cretaceous–Late CretaceousAustralia
  • Muyelensaurus Calvo et al., 2007 SauropodomorphaLate CretaceousArgentina
  • Mymoorapelta Kirkland & Carpenter, 1994 ThyreophoraLate JurassicUnited States

N

  • Naashoibitosaurus Disputed Hunt & Lucas, 1993 OrnithopodaLate CretaceousUnited States
  • Nagatitan Sethapanichsakul et al., 2026 SauropodomorphaEarly CretaceousThailand
  • Nambalia Novas et al., 2010 SauropodomorphaLate TriassicIndia
  • Nankangia Lü et al., 2013 TheropodaLate CretaceousChina
  • Nanningosaurus Mo et al., 2007 OrnithopodaLate CretaceousChina
  • Nanosaurus Disputed Marsh, 1877 NeornithischiaLate JurassicUnited States
  • Nanotyrannus Disputed Bakker et al., 1988 TheropodaLate CretaceousUnited States
  • Nanshiungosaurus Dong, 1979 TheropodaLate CretaceousChina
  • Nanuqsaurus Fiorillo & Tykoski, 2014 TheropodaLate CretaceousUnited States
  • Nanyangosaurus Xu et al., 2000 OrnithopodaLate CretaceousChina
  • Napaisaurus Ji & Zhang, 2022 OrnithopodaEarly CretaceousChina
  • Narambuenatitan Filippi et al., 2011 SauropodomorphaLate CretaceousArgentina
  • Narindasaurus Royo-Torres et al., 2020 SauropodomorphaMiddle JurassicMadagascar
  • Nasutoceratops Sampson et al., 2013 CeratopsiaLate CretaceousUnited States
  • Natovenator Lee et al., 2022 TheropodaLate CretaceousMongolia
  • Navajoceratops Fowler & Freedman Fowler, 2020 CeratopsiaLate CretaceousUnited States
  • Nebulasaurus Xing, 2013 SauropodomorphaMiddle JurassicChina
  • Nedcolbertia Kirkland et al., 1998 TheropodaEarly CretaceousUnited States
  • Nedoceratops Disputed Hatcher, 1905 CeratopsiaLate CretaceousUnited States
  • Neimongosaurus Zhang et al., 2001 TheropodaLate CretaceousChina
  • Nemegtomaia Lü et al., 2005 TheropodaLate CretaceousMongolia
  • Nemegtonykus Disputed Lee et al., 2019 TheropodaLate CretaceousMongolia
  • Nemegtosaurus Nowinski, 1971 SauropodomorphaLate CretaceousMongolia
  • Neosodon de la Moussaye, 1884 SauropodomorphaLate JurassicFrance
  • Neovenator Hutt et al., 1996 TheropodaEarly CretaceousUnited Kingdom
  • Neuquenraptor Disputed Novas & Pol, 2005 TheropodaLate CretaceousArgentina
  • Neuquensaurus Powell, 1992 SauropodomorphaLate CretaceousArgentina
  • Nevadadromeus Bonde et al., 2022 ThescelosauridaeLate CretaceousUnited States
  • Newtonsaurus Disputed Evans et al., 2025 TheropodaLate TriassicUnited Kingdom
  • Ngwevu Chapelle et al., 2019 SauropodomorphaEarly JurassicSouth Africa
  • Nhandumirim Marsola et al., 2018 SauropodomorphaLate TriassicBrazil
  • Niebla Aranciaga Rolando et al., 2020 TheropodaLate CretaceousArgentina
  • Nigersaurus Sereno et al., 1999 SauropodomorphaEarly CretaceousNiger
  • Ningyuansaurus Ji et al., 2012 TheropodaEarly CretaceousChina
  • Ninjatitan Gallina et al., 2021 SauropodomorphaEarly CretaceousArgentina
  • Niobrarasaurus Carpenter et al., 1995 ThyreophoraLate CretaceousUnited States
  • Nipponopelta Oyabu et al., 2026 ThyreophoraLate CretaceousJapan
  • Nipponosaurus Nagao, 1936 OrnithopodaLate CretaceousRussia
  • Noasaurus Bonaparte & Powell, 1980 TheropodaLate CretaceousArgentina
  • Nodocephalosaurus Sullivan, 1999 ThyreophoraLate CretaceousUnited States
  • Nodosaurus Marsh, 1889 ThyreophoraLate CretaceousUnited States
  • Nomingia Disputed Barsbold et al., 2000 TheropodaLate CretaceousMongolia
  • Nopcsaspondylus Nomen dubium Apesteguía, 2007 SauropodomorphaLate CretaceousArgentina
  • Norellraptor Wang et al., 2026 TheropodaEarly CretaceousChina
  • Normanniasaurus Le Loeuff et al., 2013 SauropodomorphaEarly CretaceousFrance
  • Notatesseraeraptor Zahner & Brinkmann, 2019 TheropodaLate TriassicSwitzerland
  • Nothronychus Kirkland & Wolfe, 2001 TheropodaLate CretaceousUnited States
  • Notoceratops Nomen dubium Tapia, 1919 CerapodaLate CretaceousArgentina
  • Notocolossus González Riga et al., 2016 SauropodomorphaLate CretaceousArgentina
  • Notohypsilophodon Martínez, 1998 OrnithopodaLate CretaceousArgentina
  • Nqwebasaurus de Klerk et al., 2000 TheropodaEarly CretaceousSouth Africa
  • Nullotitan Novas et al., 2019 SauropodomorphaLate CretaceousArgentina
  • Nuthetes Nomen dubium Owen, 1854 TheropodaEarly CretaceousUnited Kingdom

O

  • Obelignathus Czepiński & Madzia, 2025 OrnithopodaLate CretaceousFrance
  • Oblitosaurus Sánchez-Fenollosa et al., 2023 OrnithopodaLate JurassicSpain
  • Oceanotitan Mocho et al., 2019 SauropodomorphaLate JurassicPortugal
  • Ohmdenosaurus Wild, 1978 SauropodomorphaEarly JurassicGermany
  • Ojoceratops Sullivan & Lucas, 2010 CeratopsiaLate CretaceousUnited States
  • Ojoraptorsaurus Disputed Sullivan et al., 2011 TheropodaLate CretaceousUnited States
  • Oksoko Funston et al., 2020 TheropodaLate CretaceousMongolia
  • Olorotitan Godefroit et al., 2003 OrnithopodaLate CretaceousRussia
  • Omeisaurus Young, 1939 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Ondogurvel Averianov & Lopatin, 2022 TheropodaLate CretaceousMongolia
  • Oohkotokia Disputed Penkalski, 2013 ThyreophoraLate CretaceousUnited States
  • Opisthocoelicaudia Borsuk-Bialynicka, 1977 SauropodomorphaLate CretaceousMongolia
  • Oplosaurus Gervais, 1852 SauropodomorphaEarly CretaceousUnited Kingdom
  • Orkoraptor Novas et al., 2008 TheropodaLate CretaceousArgentina
  • Ornatops McDonald et al., 2021 OrnithopodaLate CretaceousUnited States
  • Ornithodesmus Nomen dubium Seeley, 1887 TheropodaEarly CretaceousUnited Kingdom
  • Ornitholestes Osborn, 1903 TheropodaLate JurassicUnited States
  • Ornithomimoides Nomen dubium Huene & Matley, 1933 TheropodaLate CretaceousIndia
  • Ornithomimus Marsh, 1890 TheropodaLate CretaceousUnited States
  • Ornithopsis Seeley, 1870 SauropodomorphaEarly CretaceousUnited Kingdom
  • Ornithotarsus Nomen dubium Cope, 1869 OrnithopodaLate CretaceousUnited States
  • Orodromeus Horner & Weishampel, 1988 OrodrominaeLate CretaceousUnited States
  • Orosaurus Nomen dubium Huxley, 1867 SauropodomorphaLate TriassicSouth Africa
  • Orthogoniosaurus Nomen dubium Das-Gupta, 1930 TheropodaLate CretaceousIndia
  • Orthomerus Nomen dubium Seeley, 1883 OrnithopodaLate CretaceousNetherlands
  • Oryctodromeus Varricchio et al., 2007 OrodrominaeLate CretaceousUnited States
  • Osmakasaurus McDonald, 2011 OrnithopodaEarly CretaceousUnited States
  • Ostafrikasaurus Nomen dubium Buffetaut, 2012 TheropodaLate JurassicTanzania
  • Ostromia Nomen dubium Foth & Rauhut, 2017 TheropodaLate JurassicGermany
  • Ouranosaurus Taquet, 1976 OrnithopodaEarly CretaceousNiger
  • Overoraptor Motta et al., 2020 TheropodaLate CretaceousArgentina
  • Overosaurus Coria et al., 2013 SauropodomorphaLate CretaceousArgentina
  • Oviraptor Osborn, 1924 TheropodaLate CretaceousMongolia
  • Owenodon Galton, 2009 OrnithopodaEarly CretaceousUnited Kingdom
  • Oxalaia Disputed Kellner et al., 2011 TheropodaLate CretaceousBrazil
  • Ozraptor Nomen dubium Long & Molnar, 1998 TheropodaMiddle JurassicAustralia

P

  • Pachycephalosaurus Brown & Schlaikjer, 1943 PachycephalosauriaLate CretaceousUnited States
  • Pachyrhinosaurus Sternberg, 1950 CeratopsiaLate CretaceousCanada
  • Pachysuchus Nomen dubium Young, 1951 SauropodomorphaEarly JurassicChina
  • Padillasaurus Carballido et al., 2015 SauropodomorphaEarly CretaceousColombia
  • Palaeopteryx Nomen dubium Jensen, 1981 TheropodaLate JurassicUnited States
  • Palaeoscincus Nomen dubium Leidy, 1856 ThyreophoraLate CretaceousUnited States
  • Paludititan Csiki et al., 2010 SauropodomorphaLate CretaceousRomania
  • Paludohadros Sacamoto et al., 2026 OrnithopodaEarly CretaceousUnited Kingdom
  • Pampadromaeus Cabreira et al., 2011 SauropodomorphaLate TriassicBrazil
  • Pamparaptor Porfiri et al., 2011 TheropodaLate CretaceousArgentina
  • Panamericansaurus Calvo & Porfiri, 2010 SauropodomorphaLate CretaceousArgentina
  • Pandoravenator Rauhut & Pol, 2017 TheropodaLate JurassicArgentina
  • Panguraptor You et al., 2014 TheropodaEarly JurassicChina
  • Panoplosaurus Lambe, 1919 ThyreophoraLate CretaceousCanada
  • Panphagia Martínez & Alcober, 2009 SauropodomorphaLate TriassicArgentina
  • Pantydraco Galton et al., 2007 SauropodomorphaLate Triassic–Early JurassicUnited Kingdom
  • Papiliovenator Pei et al., 2021 TheropodaLate CretaceousChina
  • Paralitherizinosaurus Kobayashi et al., 2022 TheropodaLate CretaceousJapan
  • Paralititan Smith et al., 2001 SauropodomorphaLate CretaceousEgypt
  • Paranthodon Nopcsa, 1929 ThyreophoraEarly CretaceousSouth Africa
  • Pararhabdodon Casanovas-Cladellas et al., 1993 OrnithopodaLate CretaceousSpain
  • Parasaurolophus Parks, 1922 OrnithopodaLate CretaceousCanada
  • Paraxenisaurus Serrano-Brañas et al., 2020 TheropodaLate CretaceousMexico
  • Pareisactus Párraga & Prieto-Márquez, 2019 OrnithopodaLate CretaceousSpain
  • Parksosaurus Sternberg, 1937 ThescelosaurinaeLate CretaceousCanada
  • Paronychodon Nomen dubium Cope, 1876 TheropodaLate CretaceousUnited States
  • Parvicursor Karhu & Rautian, 1996 TheropodaLate CretaceousMongolia
  • Patagonykus Novas, 1996 TheropodaLate CretaceousArgentina
  • Patagopelta Riguetti et al., 2022 ThyreophoraLate CretaceousArgentina
  • Patagosaurus Bonaparte, 1979 SauropodomorphaEarly JurassicArgentina
  • Patagotitan Carballido et al., 2017 SauropodomorphaEarly CretaceousArgentina
  • Paulodon Sancarlo et al., 2025 OrnithopodaEarly CretaceousSpain
  • Pawpawsaurus Lee, 1996 ThyreophoraEarly CretaceousUnited States
  • Pectinodon Disputed Carpenter, 1982 TheropodaLate CretaceousUnited States
  • Pedopenna Xu & Zhang, 2005 TheropodaMiddle JurassicChina
  • Pegomastax Sereno, 2012 HeterodontosaurinaeEarly JurassicSouth Africa
  • Peishansaurus Nomen dubium Bohlin, 1953 GenasauriaEarly CretaceousChina
  • Pelecanimimus Pérez-Moreno et al., 1994 TheropodaEarly CretaceousSpain
  • Pellegrinisaurus Salgado, 1996 SauropodomorphaLate CretaceousArgentina
  • Pelorosaurus Nomen dubium Mantell, 1850 SauropodomorphaEarly CretaceousUnited Kingdom
  • Pendraig Spiekman et al., 2021 TheropodaLate TriassicUnited Kingdom
  • Penelopognathus Godefroit et al., 2005 OrnithopodaEarly CretaceousChina
  • Pentaceratops Osborn, 1923 CeratopsiaLate CretaceousUnited States
  • Perijasaurus Rincón et al., 2022 SauropodomorphaEarly Jurassic–Middle JurassicColombia
  • Petrobrasaurus Filippi et al., 2011 SauropodomorphaLate CretaceousArgentina
  • Petrustitan Díez Díaz et al., 2025 SauropodomorphaLate CretaceousRomania
  • Phaedrolosaurus Nomen dubium Dong, 1973 TheropodaEarly CretaceousChina
  • Philovenator Xu et al., 2012 TheropodaLate CretaceousChina
  • Phosphatotitan Longrich et al., 2026 SauropodomorphaLate CretaceousMorocco
  • Phuwiangosaurus Martin et al., 1994 SauropodomorphaEarly CretaceousThailand
  • Phuwiangvenator Samathi et al., 2019 TheropodaEarly CretaceousThailand
  • Phyllodon Nomen dubium Thulborn, 1973 NeornithischiaLate JurassicPortugal
  • Piatnitzkysaurus Bonaparte, 1979 TheropodaMiddle JurassicArgentina
  • Pilmatueia Coria et al., 2019 SauropodomorphaEarly CretaceousArgentina
  • Pinacosaurus Gilmore, 1933 ThyreophoraLate CretaceousMongolia
  • Pitekunsaurus Filippi & Garrido, 2008 SauropodomorphaLate CretaceousArgentina
  • Piveteausaurus Taquet & Welles, 1977 TheropodaMiddle JurassicFrance
  • Planicoxa DiCroce & Carpenter, 2001 OrnithopodaEarly CretaceousUnited States
  • Plateosauravus Huene, 1932 SauropodomorphaLate TriassicSouth Africa
  • Plateosaurus Fraas, 1913 SauropodomorphaLate TriassicGermany
  • Platypelta Penkalski, 2018 ThyreophoraLate CretaceousCanada
  • Platytholus Horner et al., 2022 PachycephalosauriaLate CretaceousUnited States
  • Plesiohadros Tsogtbaatar et al., 2014 OrnithopodaLate CretaceousMongolia
  • Plesiolophus McFeeters et al., 2026 OrnithopodaLate CretaceousCanada
  • Pleurocoelus Marsh, 1888 SauropodomorphaEarly CretaceousUnited States
  • Pneumatoraptor Ősi et al., 2010 TheropodaLate CretaceousHungary
  • Podokesaurus Talbot, 1911 TheropodaEarly JurassicUnited States
  • Poekilopleuron Eudes-Deslongchamps, 1837 TheropodaMiddle JurassicFrance
  • Polacanthoides Nomen dubium Nopcsa, 1928 ThyreophoraEarly CretaceousUnited Kingdom
  • Polacanthus Fox, 1866 ThyreophoraEarly CretaceousUnited Kingdom
  • Polyodontosaurus Nomen dubium Gilmore, 1932 TheropodaLate CretaceousCanada
  • Polyonax Nomen dubium Cope, 1874 CeratopsiaLate CretaceousUnited States
  • Portellsaurus Santos-Cubedo et al., 2021 OrnithopodaEarly CretaceousSpain
  • Powellvenator Ezcurra, 2017 TheropodaLate TriassicArgentina
  • Pradhania Kutty et al., 2007 SauropodomorphaEarly JurassicIndia
  • Prenocephale Maryańska & Osmólska, 1974 PachycephalosauriaLate CretaceousMongolia
  • Prenoceratops Chinnery, 2004 CeratopsiaLate CretaceousUnited States
  • Priconodon Disputed Marsh, 1888 ThyreophoraEarly CretaceousUnited States
  • Priodontognathus Disputed Seeley, 1875 ThyreophoraLate JurassicUnited Kingdom
  • Proa McDonald et al., 2012 OrnithopodaEarly CretaceousSpain
  • Probactrosaurus Rozhdestvensky, 1966 OrnithopodaEarly CretaceousChina
  • Probrachylophosaurus Freedman Fowler & Horner, 2015 OrnithopodaLate CretaceousUnited States
  • Proceratosaurus Huene, 1926 TheropodaMiddle JurassicUnited Kingdom
  • Procompsognathus Fraas, 1913 TheropodaLate TriassicGermany
  • Prodeinodon Nomen dubium Osborn, 1924 TheropodaEarly CretaceousMongolia
  • Propanoplosaurus Stanford et al., 2011 ThyreophoraEarly CretaceousUnited States
  • Prosaurolophus Brown, 1916 OrnithopodaLate CretaceousCanada
  • Protarchaeopteryx Ji & Ji, 1997 TheropodaEarly CretaceousChina
  • Protathlitis Disputed Santos-Cubedo et al., 2023 TheropodaEarly CretaceousSpain
  • Protoavis Nomen dubium Chatterjee, 1991 TheropodaLate TriassicUnited States
  • Protoceratops Granger & Gregory, 1923 CeratopsiaLate CretaceousMongolia
  • Protognathosaurus Olshevsky, 1991 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Protohadros Head, 1998 OrnithopodaLate CretaceousUnited States
  • Psittacosaurus Osborn, 1923 CeratopsiaEarly CretaceousMongolia
  • Pteropelyx Nomen dubium Cope, 1889 OrnithopodaLate CretaceousUnited States
  • Pterospondylus Nomen dubium Jaekel, 1914 TheropodaLate TriassicGermany
  • Ptychotherates Srivastava & Nesbitt, 2026 HerrerasauriaLate TriassicUnited States
  • Puertasaurus Novas et al., 2005 SauropodomorphaLate CretaceousArgentina
  • Pukyongosaurus Nomen dubium Dong et al., 2001 SauropodomorphaEarly CretaceousSouth Korea
  • Pulanesaura McPhee et al., 2015 SauropodomorphaEarly JurassicSouth Africa
  • Pulaosaurus Yang et al., 2025 NeornithischiaMiddle Jurassic–Late JurassicChina
  • Punatitan Hechenleitner et al., 2020 SauropodomorphaLate CretaceousArgentina
  • Pycnonemosaurus Kellner & Campos, 2002 TheropodaLate CretaceousBrazil
  • Pyroraptor Allain & Taquet, 2000 TheropodaLate CretaceousFrance

Q

  • Qantassaurus Rich & Vickers-Rich, 1999 OrnithopodaEarly CretaceousAustralia
  • Qianjiangsaurus Dai et al., 2024 OrnithopodaLate CretaceousChina
  • Qianlong Han et al., 2024 SauropodomorphaEarly JurassicChina
  • Qianzhousaurus Lü et al., 2014 TheropodaLate CretaceousChina
  • Qiaowanlong You & Li, 2009 SauropodomorphaEarly CretaceousChina
  • Qijianglong Xing et al., 2015 SauropodomorphaLate JurassicChina
  • Qingxiusaurus Mo et al., 2008 SauropodomorphaLate CretaceousChina
  • Qinlingosaurus Xue et al., 1996 SauropodomorphaLate CretaceousChina
  • Qiupalong Xu et al., 2011 TheropodaLate CretaceousChina
  • Qiupanykus Lü et al., 2018 TheropodaLate CretaceousChina
  • Quaesitosaurus Kurzanov & Bannikov, 1983 SauropodomorphaLate CretaceousMongolia
  • Quetecsaurus González Riga & Ortiz David, 2013 SauropodomorphaLate CretaceousArgentina
  • Quilmesaurus Disputed Coria, 2001 TheropodaLate CretaceousArgentina
  • Qunkasaura Mocho et al., 2024 SauropodomorphaLate CretaceousSpain

R

  • Rahiolisaurus Novas et al., 2010 TheropodaLate CretaceousIndia
  • Rahonavis Forster et al., 1998 TheropodaLate CretaceousMadagascar
  • Rajasaurus Wilson et al., 2003 TheropodaLate CretaceousIndia
  • Rapator Nomen dubium Huene, 1932 TheropodaLate CretaceousAustralia
  • Rapetosaurus Curry Rogers & Forster, 2001 SauropodomorphaLate CretaceousMadagascar
  • Raptorex Disputed Sereno et al., 2009 TheropodaLate Cretaceous
  • Ratchasimasaurus Shibata et al., 2011 OrnithopodaEarly CretaceousThailand
  • Rativates McFeeters et al., 2016 TheropodaLate CretaceousCanada
  • Rayososaurus Bonaparte, 1996 SauropodomorphaLate CretaceousArgentina
  • Rebbachisaurus Lavocat, 1954 SauropodomorphaLate CretaceousMorocco
  • Regaliceratops Brown & Henderson, 2015 CeratopsiaLate CretaceousCanada
  • Regnosaurus Nomen dubium Mantell, 1848 ThyreophoraEarly CretaceousUnited Kingdom
  • Rhabdodon Matheron, 1869 OrnithopodaLate CretaceousFrance
  • Rhinorex Gates & Scheetz, 2014 OrnithopodaLate CretaceousUnited States
  • Rhoetosaurus Longman, 1926 SauropodomorphaMiddle Jurassic–Late JurassicAustralia
  • Rhomaleopakhus Upchurch et al., 2021 SauropodomorphaLate JurassicChina
  • Riabininohadros Lopatin & Averianov, 2020 OrnithopodaLate CretaceousUkraine
  • Richardoestesia Currie et al., 1990 TheropodaLate CretaceousCanada
  • Rinchenia Barsbold, 1997 TheropodaLate CretaceousMongolia
  • Rinconraptor Méndez et al., 2026 TheropodaLate CretaceousArgentina
  • Rinconsaurus Calvo & González Riga, 2003 SauropodomorphaLate CretaceousArgentina
  • Riojasaurus Bonaparte, 1969 SauropodomorphaLate TriassicArgentina
  • Riojavenatrix Isasmendi et al., 2024 TheropodaEarly CretaceousSpain
  • Riparovenator Disputed Barker et al., 2021 TheropodaEarly CretaceousUnited Kingdom
  • Rocasaurus Salgado & Azpilicueta, 2000 SauropodomorphaLate CretaceousArgentina
  • Ruehleia Galton, 2001 SauropodomorphaLate TriassicGermany
  • Rugocaudia Woodruff, 2012 SauropodomorphaEarly CretaceousUnited States
  • Rugops Sereno et al., 2004 TheropodaLate CretaceousNiger
  • Ruixinia Mo et al., 2023 SauropodomorphaEarly CretaceousChina
  • Rukwatitan Gorscak et al., 2014 SauropodomorphaLate CretaceousTanzania
  • Ruyangosaurus Lü et al., 2009 SauropodomorphaEarly CretaceousChina

S

  • Saichania Maryańska, 1977 ThyreophoraLate CretaceousMongolia
  • Saltasaurus Bonaparte & Powell, 1980 SauropodomorphaLate CretaceousArgentina
  • Saltriovenator Dal Sasso et al., 2018 TheropodaEarly JurassicItaly
  • Sanjuansaurus Alcober & Martínez, 2010 HerrerasauridaeLate TriassicArgentina
  • Sanpasaurus Young, 1944 SauropodomorphaEarly JurassicChina
  • Santanaraptor Kellner, 1999 TheropodaEarly CretaceousBrazil
  • Sanxiasaurus Li et al., 2021 NeornithischiaEarly Jurassic–Middle JurassicChina
  • Sarahsaurus Rowe et al., 2011 SauropodomorphaEarly JurassicUnited States
  • Sarcolestes Lydekker, 1893 ThyreophoraMiddle JurassicUnited Kingdom
  • Sarcosaurus Andrews, 1921 TheropodaEarly JurassicUnited Kingdom
  • Sarmientosaurus Martínez et al., 2016 SauropodomorphaLate CretaceousArgentina
  • Sasayamagnomus Tanaka et al., 2024 CeratopsiaEarly CretaceousJapan
  • Saturnalia Langer et al., 1999 SauropodomorphaLate TriassicBrazil
  • Saurolophus Brown, 1912 OrnithopodaLate CretaceousCanada
  • Sauroniops Disputed Cau et al., 2012 TheropodaLate CretaceousMorocco
  • Sauropelta Ostrom, 1970 ThyreophoraEarly Cretaceous–Late CretaceousUnited States
  • Saurophaganax Disputed Chure, 1995 TheropodaLate JurassicUnited States
  • Sauroplites Bohlin, 1953 ThyreophoraEarly CretaceousChina
  • Sauroposeidon Wedel et al., 2000 SauropodomorphaEarly CretaceousUnited States
  • Saurornithoides Osborn, 1924 TheropodaLate CretaceousMongolia
  • Saurornitholestes Sues, 1978 TheropodaLate CretaceousCanada
  • Savannasaurus Poropat et al., 2016 SauropodomorphaLate CretaceousAustralia
  • Scansoriopteryx Czerkas & Yuan, 2002 TheropodaEarly CretaceousChina
  • Scelidosaurus Owen, 1859 ThyreophoraEarly JurassicUnited Kingdom
  • Schleitheimia Rauhut et al., 2020 SauropodomorphaLate TriassicSwitzerland
  • Scipionyx Dal Sasso & Signore, 1998 TheropodaEarly CretaceousItaly
  • Sciurumimus Rauhut et al., 2012 TheropodaLate JurassicGermany
  • Scolosaurus Nopcsa, 1928 ThyreophoraLate CretaceousCanada
  • Scutellosaurus Colbert, 1981 ThyreophoraEarly JurassicUnited States
  • Secernosaurus Brett-Surman, 1979 OrnithopodaLate CretaceousArgentina
  • Sefapanosaurus Otero et al., 2015 SauropodomorphaLate Triassic–Early JurassicSouth Africa
  • Segisaurus Camp, 1936 TheropodaEarly JurassicUnited States
  • Segnosaurus Perle, 1979 TheropodaLate CretaceousMongolia
  • Seitaad Sertich & Loewen, 2010 SauropodomorphaEarly JurassicUnited States
  • Sektensaurus Ibiricu et al., 2019 OrnithopodaLate CretaceousArgentina
  • Serendipaceratops Disputed Rich & Vickers-Rich, 2003 GenasauriaEarly CretaceousAustralia
  • Serikornis Lefèvre et al., 2017 TheropodaLate JurassicChina
  • Shamosaurus Tumanova, 1983 ThyreophoraEarly CretaceousMongolia
  • Shanag Turner et al., 2007 TheropodaEarly CretaceousMongolia
  • Shantungosaurus Hu, 1973 OrnithopodaLate CretaceousChina
  • Shanyangosaurus Xue et al., 1996 TheropodaLate CretaceousChina
  • Shaochilong Brusatte et al., 2009 TheropodaEarly CretaceousChina
  • Shenzhousaurus Ji et al., 2003 TheropodaEarly CretaceousChina
  • Shidaisaurus Wu et al., 2009 TheropodaMiddle JurassicChina
  • Shingopana Gorscak et al., 2017 SauropodomorphaLate CretaceousTanzania
  • Shishugounykus Qin et al., 2019 TheropodaMiddle Jurassic–Late JurassicChina
  • Shixinggia Lü & Zhang, 2005 TheropodaLate CretaceousChina
  • Shri Turner et al., 2021 TheropodaLate CretaceousMongolia
  • Shuangbaisaurus Disputed Wang et al., 2017 TheropodaEarly JurassicChina
  • Shuangmiaosaurus You et al., 2003 OrnithopodaEarly Cretaceous–Late CretaceousChina
  • Shunosaurus Dong et al., 1983 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Shuvuuia Chiappe et al., 1998 TheropodaLate CretaceousMongolia
  • Siamodon Disputed Buffetaut & Suteethorn, 2011 OrnithopodaEarly CretaceousThailand
  • Siamosaurus Nomen dubium Buffetaut & Ingavat, 1986 TheropodaEarly CretaceousThailand
  • Siamotyrannus Buffetaut et al., 1996 TheropodaEarly CretaceousThailand
  • Siamraptor Chokchaloemwong et al., 2019 TheropodaEarly CretaceousThailand
  • Siats Zanno & Makovicky, 2013 TheropodaLate CretaceousUnited States
  • Sibirotitan Averianov et al., 2018 SauropodomorphaEarly CretaceousRussia
  • Sidersaura Lerzo et al., 2025 SauropodomorphaLate CretaceousArgentina
  • Sierraceratops Dalman et al., 2021 CeratopsiaLate CretaceousUnited States
  • Sigilmassasaurus Disputed Russell, 1996 TheropodaLate CretaceousMorocco
  • Siluosaurus Nomen dubium Dong, 1997 CerapodaEarly CretaceousChina
  • Silutitan Wang et al., 2021 SauropodomorphaEarly CretaceousChina
  • Silvisaurus Eaton, 1960 ThyreophoraEarly Cretaceous–Late CretaceousUnited States
  • Similicaudipteryx He et al., 2008 TheropodaEarly CretaceousChina
  • Sinankylosaurus Nomen dubium Wang et al., 2020 DinosauriaLate CretaceousChina
  • Sinocalliopteryx Ji et al., 2007 TheropodaEarly CretaceousChina
  • Sinocephale Evans et al., 2021 PachycephalosauriaLate CretaceousChina
  • Sinoceratops Xu et al., 2010 CeratopsiaLate CretaceousChina
  • Sinopeltosaurus Nomen dubium Ulansky, 2014 OrnithischiaEarly JurassicChina
  • Sinornithoides Russell & Dong, 1993 TheropodaEarly CretaceousChina
  • Sinornithomimus Kobayashi & Lü, 2003 TheropodaLate CretaceousChina
  • Sinornithosaurus Xu et al., 1999 TheropodaEarly CretaceousChina
  • Sinosauropteryx Ji & Ji, 1996 TheropodaEarly CretaceousChina
  • Sinosaurus Young, 1940 TheropodaEarly JurassicChina
  • Sinotyrannus Ji et al., 2009 TheropodaEarly CretaceousChina
  • Sinovenator Xu et al., 2002 TheropodaEarly CretaceousChina
  • Sinraptor Currie & Zhao, 1993 TheropodaMiddle Jurassic–Late JurassicChina
  • Sinusonasus Xu & Wang, 2004 TheropodaEarly CretaceousChina
  • Sirindhorna Shibata et al., 2015 OrnithopodaEarly CretaceousThailand
  • Skorpiovenator Canale et al., 2009 TheropodaLate CretaceousArgentina
  • Smitanosaurus Whitlock & Wilson Mantilla, 2020 SauropodomorphaLate JurassicUnited States
  • Sonidosaurus Xu et al., 2006 SauropodomorphaLate CretaceousChina
  • Sonorasaurus Ratkevich, 1998 SauropodomorphaEarly Cretaceous–Late CretaceousUnited States
  • Soriatitan Royo-Torres et al., 2017 SauropodomorphaEarly CretaceousSpain
  • Spectrovenator Zaher et al., 2020 TheropodaEarly CretaceousBrazil
  • Sphaerotholus Williamson & Carr, 2003 PachycephalosauriaLate CretaceousUnited States
  • Sphenospondylus Nomen dubium Seeley, 1883 OrnithopodaEarly CretaceousUnited Kingdom
  • Spiclypeus Mallon et al., 2016 CeratopsiaLate CretaceousUnited States
  • Spicomellus Maidment et al., 2021 ThyreophoraMiddle JurassicMorocco
  • Spinophorosaurus Remes et al., 2009 SauropodomorphaMiddle JurassicNiger
  • Spinops Farke et al., 2011 CeratopsiaLate CretaceousCanada
  • Spinosaurus Stromer, 1915 TheropodaLate CretaceousMorocco
  • Spinostropheus Sereno et al., 2004 TheropodaMiddle Jurassic–Late JurassicNiger
  • Staurikosaurus Colbert, 1970 HerrerasauridaeLate TriassicBrazil
  • Stegoceras Lambe, 1902 PachycephalosauriaLate CretaceousCanada
  • Stegopelta Williston, 1905 ThyreophoraLate CretaceousUnited States
  • Stegosaurides Nomen dubium Bohlin, 1953 ThyreophoraEarly CretaceousChina
  • Stegosaurus Marsh, 1877 ThyreophoraLate JurassicUnited States
  • Stegouros Soto-Acuña et al., 2021 ThyreophoraLate CretaceousChile
  • Stellasaurus Wilson et al., 2020 CeratopsiaLate CretaceousUnited States
  • Stenonychosaurus Disputed Sternberg, 1932 TheropodaLate CretaceousCanada
  • Stenopelix Meyer, 1857 CeratopsiaEarly CretaceousGermany
  • Stephanosaurus Nomen dubium Lambe, 1914 OrnithopodaLate CretaceousCanada
  • Stokesosaurus Madsen, 1974 TheropodaLate JurassicUnited States
  • Streptospondylus Meyer, 1832 TheropodaMiddle Jurassic–Late JurassicFrance
  • Struthiomimus Osborn, 1917 TheropodaLate CretaceousCanada
  • Struthiosaurus Bunzel, 1870 ThyreophoraLate CretaceousAustria
  • Stygivenator Disputed Olshevsky et al., 1995 TheropodaLate CretaceousUnited States
  • Styracosaurus Lambe, 1913 CeratopsiaLate CretaceousCanada
  • Suchomimus Sereno et al., 1998 TheropodaEarly CretaceousNiger
  • Suchosaurus Nomen dubium Owen, 1842 TheropodaEarly CretaceousUnited Kingdom
  • Supersaurus Jensen, 1985 SauropodomorphaLate JurassicUnited States
  • Suskityrannus Nesbitt et al., 2019 TheropodaLate CretaceousUnited States
  • Suuwassea Harris & Dodson, 2004 SauropodomorphaLate JurassicUnited States
  • Suzhousaurus Li et al., 2007 TheropodaEarly CretaceousChina
  • Syngonosaurus Nomen dubium Seeley, 1879 OrnithopodaEarly CretaceousUnited Kingdom
  • Szechuanosaurus Nomen dubium Young, 1942 TheropodaLate JurassicChina

T

  • Tachiraptor Langer et al., 2014 TheropodaEarly JurassicVenezuela
  • Talarurus Maleev, 1952 ThyreophoraLate CretaceousMongolia
  • Talenkauen Novas et al., 2004 OrnithopodaLate CretaceousArgentina
  • Taleta Longrich et al., 2025 OrnithopodaLate CretaceousMorocco
  • Talos Zanno et al., 2011 TheropodaLate CretaceousUnited States
  • Tamarro Sellés et al., 2021 TheropodaLate CretaceousSpain
  • Tambatitanis Saegusa & Ikeda, 2014 SauropodomorphaEarly CretaceousJapan
  • Tameryraptor Kellermann et al., 2025 TheropodaLate CretaceousEgypt
  • Tangvayosaurus Allain et al., 1999 SauropodomorphaEarly CretaceousLaos
  • Tanius Wiman, 1929 OrnithopodaLate CretaceousChina
  • Tanycolagreus Carpenter et al., 2005 TheropodaLate JurassicUnited States
  • Tanystrosuchus Nomen dubium Kuhn, 1963 TheropodaLate TriassicGermany
  • Taohelong Yang et al., 2013 ThyreophoraEarly CretaceousChina
  • Tapuiasaurus Zaher et al., 2011 SauropodomorphaEarly CretaceousBrazil
  • Tarascosaurus Disputed Le Loeuff & Buffetaut, 1991 TheropodaLate CretaceousFrance
  • Tarbosaurus Maleev, 1955 TheropodaLate CretaceousMongolia
  • Tarchia Maryańska, 1977 ThyreophoraLate CretaceousMongolia
  • Tastavinsaurus Canudo et al., 2008 SauropodomorphaEarly CretaceousSpain
  • Tatankacephalus Parsons & Parsons, 2009 ThyreophoraEarly CretaceousUnited States
  • Tatankaceratops Disputed Ott & Larson, 2010 CeratopsiaLate CretaceousUnited States
  • Tataouinea Fanti et al., 2013 SauropodomorphaEarly CretaceousTunisia
  • Tatisaurus Nomen dubium Simmons & Nash, 1965 ThyreophoraEarly JurassicChina
  • Taurovenator Disputed Motta et al., 2016 TheropodaLate CretaceousArgentina
  • Tawa Nesbitt et al., 2009 SaurischiaLate TriassicUnited States
  • Tazoudasaurus Allain et al., 2004 SauropodomorphaEarly JurassicMorocco
  • Tehuelchesaurus Rich et al., 1999 SauropodomorphaLate JurassicArgentina
  • Teinurosaurus Nomen dubium Nopcsa, 1928 TheropodaLate JurassicFrance
  • Telmatosaurus Nopcsa, 1903 OrnithopodaLate CretaceousRomania
  • Tendaguria Bonaparte et al., 2000 SauropodomorphaLate JurassicTanzania
  • Tengrisaurus Averianov & Skutschas, 2017 SauropodomorphaEarly CretaceousRussia
  • Tenontosaurus Ostrom, 1970 OrnithopodaEarly Cretaceous–Late CretaceousUnited States
  • Teratophoneus Carr et al., 2011 TheropodaLate CretaceousUnited States
  • Terminocavus Fowler & Freedman Fowler, 2020 CeratopsiaLate CretaceousUnited States
  • Tethyshadros Dalla Vecchia, 2009 OrnithopodaLate CretaceousItaly
  • Texacephale Nomen dubium Longrich et al., 2010 PachycephalosauriaLate CretaceousUnited States
  • Texasetes Coombs, 1995 ThyreophoraEarly CretaceousUnited States
  • Thanatotheristes Voris et al., 2020 TheropodaLate CretaceousCanada
  • Thanos Delcourt & Iori, 2020 TheropodaLate CretaceousBrazil
  • Tharosaurus Disputed Bajpai et al., 2023 SauropodomorphaMiddle JurassicIndia
  • Thecocoelurus Nomen dubium Huene, 1923 TheropodaEarly CretaceousUnited Kingdom
  • Thecodontosaurus Riley & Stutchbury, 1836 SauropodomorphaLate TriassicUnited Kingdom
  • Thecospondylus Nomen dubium Seeley, 1882 DinosauriaEarly CretaceousUnited Kingdom
  • Theiophytalia Brill & Carpenter, 2007 OrnithopodaEarly CretaceousUnited States
  • Therizinosaurus Maleev, 1954 TheropodaLate CretaceousMongolia
  • Thescelosaurus Gilmore, 1913 ThescelosaurinaeLate CretaceousUnited States
  • Thespesius Nomen dubium Leidy, 1856 OrnithopodaLate CretaceousUnited States
  • Thyreosaurus Zafaty et al., 2024 ThyreophoraMiddle JurassicMorocco
  • Tiamat Pereira et al., 2024 SauropodomorphaEarly Cretaceous–Late CretaceousBrazil
  • Tianchisaurus Nomen dubium Dong, 1993 ThyreophoraMiddle JurassicChina
  • Tianyulong Zheng et al., 2009 HeterodontosauridaeMiddle Jurassic–Late JurassicChina
  • Tianyuraptor Zheng et al., 2010 TheropodaEarly CretaceousChina
  • Tianzhenosaurus Disputed Pang & Cheng, 1998 ThyreophoraLate CretaceousChina
  • Tichosteus Nomen dubium Cope, 1877 OrnithopodaLate JurassicUnited States
  • Tienshanosaurus Disputed Young, 1937 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Tietasaura Bandeira et al., 2024 OrnithopodaEarly CretaceousBrazil
  • Timimus Rich & Vickers-Rich, 1994 TheropodaEarly CretaceousAustralia
  • Timurlengia Brusatte et al., 2016 TheropodaLate CretaceousUzbekistan
  • Titanoceratops Disputed Longrich, 2011 CeratopsiaLate CretaceousUnited States
  • Titanomachya Pérez-Moreno et al., 2025 SauropodomorphaLate CretaceousArgentina
  • Titanosaurus Nomen dubium Lydekker, 1877 SauropodomorphaLate CretaceousIndia
  • Tlatolophus Ramírez-Velasco et al., 2021 OrnithopodaLate CretaceousMexico
  • Tochisaurus Kurzanov & Osmólska, 1991 TheropodaLate CretaceousMongolia
  • Tonganosaurus Li et al., 2010 SauropodomorphaEarly JurassicChina
  • Tongnanlong Wei et al., 2025 SauropodomorphaLate JurassicChina
  • Tongtianlong Lü et al., 2016 TheropodaLate CretaceousChina
  • Tornieria Sternfeld, 1911 SauropodomorphaLate JurassicTanzania
  • Torosaurus Disputed Marsh, 1891 CeratopsiaLate CretaceousUnited States
  • Torvosaurus Galton & Jensen, 1979 TheropodaLate JurassicUnited States
  • Tototlmimus Serrano-Brañas et al., 2016 TheropodaLate CretaceousMexico
  • Trachodon Nomen dubium Leidy, 1856 OrnithopodaLate CretaceousUnited States
  • Tralkasaurus Cerroni et al., 2020 TheropodaLate CretaceousArgentina
  • Transylvanosaurus Augustin et al., 2022 OrnithopodaLate CretaceousRomania
  • Tratayenia Porfiri et al., 2018 TheropodaLate CretaceousArgentina
  • Traukutitan Juárez Valieri & Calvo, 2011 SauropodomorphaLate CretaceousArgentina
  • Triceratops Marsh, 1889 CeratopsiaLate CretaceousUnited States
  • Trierarchuncus Fowler et al., 2020 TheropodaLate CretaceousUnited States
  • Trigonosaurus Disputed Campos et al., 2005 SauropodomorphaLate CretaceousBrazil
  • Trimucrodon Nomen dubium Thulborn, 1973 OrnithischiaLate JurassicPortugal
  • Trinisaura Coria et al., 2013 OrnithopodaLate CretaceousAntarctica
  • Triunfosaurus Carvalho et al., 2017 SauropodomorphaEarly CretaceousBrazil
  • Tromerosaurus Powers et al., 2026 TheropodaLate CretaceousCanada
  • Troodon Disputed Leidy, 1856 TheropodaLate CretaceousUnited States
  • Tsaagan Norell et al., 2006 TheropodaLate CretaceousMongolia
  • Tsagantegia Tumanova, 1993 ThyreophoraLate CretaceousMongolia
  • Tsintaosaurus Young, 1958 OrnithopodaLate CretaceousChina
  • Tuebingosaurus Fernández & Werneburg, 2022 SauropodomorphaLate TriassicGermany
  • Tugulusaurus Dong, 1973 TheropodaEarly CretaceousChina
  • Tuojiangosaurus Dong et al., 1977 ThyreophoraMiddle Jurassic–Late JurassicChina
  • Turanoceratops Nessov et al., 1989 CeratopsiaLate CretaceousUzbekistan
  • Turiasaurus Royo-Torres et al., 2006 SauropodomorphaLate JurassicSpain
  • Tylocephale Maryańska & Osmólska, 1974 PachycephalosauriaLate CretaceousMongolia
  • Tyrannomimus Hattori et al., 2023 TheropodaEarly CretaceousJapan
  • Tyrannosaurus Osborn, 1905 TheropodaLate CretaceousUnited States
  • Tyrannotitan Novas et al., 2005 TheropodaEarly CretaceousArgentina

U

  • Uberabatitan Salgado & de Souza Carvalho, 2008 SauropodomorphaLate CretaceousBrazil
  • Udanoceratops Kurzanov, 1992 CeratopsiaLate CretaceousMongolia
  • Udelartitan Soto et al., 2024 SauropodomorphaLate CretaceousUruguay
  • Ultrasaurus Nomen dubium Kim, 1983 SauropodomorphaEarly CretaceousSouth Korea
  • Ulughbegsaurus Disputed Tanaka et al., 2021 TheropodaLate CretaceousUzbekistan
  • Unaysaurus Leal et al., 2004 SauropodomorphaLate TriassicBrazil
  • Unenlagia Novas & Puerta, 1997 TheropodaLate CretaceousArgentina
  • Unescoceratops Ryan et al., 2012 CeratopsiaLate CretaceousCanada
  • Unquillosaurus Powell, 1979 TheropodaLate CretaceousArgentina
  • Uragasaurus Nilpanapan et al., 2026 SauropodomorphaLate Jurassic–Early CretaceousThailand
  • Urbacodon Averianov & Sues, 2007 TheropodaLate CretaceousUzbekistan
  • Uriash Díez Díaz et al., 2025 SauropodomorphaLate CretaceousRomania
  • Utahceratops Sampson et al., 2010 CeratopsiaLate CretaceousUnited States
  • Utahraptor Kirkland et al., 1993 TheropodaEarly CretaceousUnited States
  • Uteodon McDonald, 2011 OrnithopodaLate JurassicUnited States

V

  • Vagaceratops Sampson et al., 2010 CeratopsiaLate CretaceousCanada
  • Vahiny Curry Rogers & Wilson, 2014 SauropodomorphaLate CretaceousMadagascar
  • Valdoraptor Nomen dubium Olshevsky, 1991 TheropodaEarly CretaceousUnited Kingdom
  • Valdosaurus Galton, 1977 OrnithopodaEarly CretaceousUnited Kingdom
  • Vallibonavenatrix Malafaia et al., 2019 TheropodaEarly CretaceousSpain
  • Variraptor Nomen dubium Le Loeuff & Buffetaut, 1998 TheropodaLate CretaceousFrance
  • Vayuraptor Samathi et al., 2019 TheropodaEarly CretaceousThailand
  • Vectaerovenator Barker et al., 2020 TheropodaEarly CretaceousUnited Kingdom
  • Vectidromeus Longrich et al., 2024 OrnithopodaEarly CretaceousUnited Kingdom
  • Vectipelta Pond et al., 2023 ThyreophoraEarly CretaceousUnited Kingdom
  • Vectiraptor Longrich et al., 2022 TheropodaEarly CretaceousUnited Kingdom
  • Velafrons Gates et al., 2007 OrnithopodaLate CretaceousMexico
  • Velocipes Nomen dubium Huene, 1932 SaurischiaLate TriassicPoland
  • Velociraptor Osborn, 1924 TheropodaLate CretaceousMongolia
  • Velocisaurus Bonaparte, 1991 TheropodaLate CretaceousArgentina
  • Venenosaurus Tidwell et al., 2001 SauropodomorphaEarly CretaceousUnited States
  • Vespersaurus Langer et al., 2019 TheropodaEarly CretaceousBrazil
  • Veterupristisaurus Rauhut, 2011 TheropodaLate JurassicTanzania
  • Viavenator Filippi et al., 2016 TheropodaLate CretaceousArgentina
  • Vitosaura Jiménez Velandia et al., 2025 TheropodaLate CretaceousArgentina
  • Volgatitan Averianov & Efimov, 2018 SauropodomorphaEarly CretaceousRussia
  • Volkheimeria Bonaparte, 1979 SauropodomorphaEarly JurassicArgentina
  • Vouivria Mannion et al., 2017 SauropodomorphaLate JurassicFrance
  • Vulcanodon Raath, 1972 SauropodomorphaEarly JurassicZimbabwe

W

  • Wakinosaurus Nomen dubium Okazaki, 1992 TheropodaEarly CretaceousJapan
  • Walgettosuchus Nomen dubium Huene, 1932 TheropodaLate CretaceousAustralia
  • Wamweracaudia Mannion et al., 2019 SauropodomorphaLate JurassicTanzania
  • Wannanosaurus Hou, 1977 PachycephalosauriaLate CretaceousChina
  • Weewarrasaurus Bell et al., 2018 OrnithopodaLate CretaceousAustralia
  • Wendiceratops Evans & Ryan, 2015 CeratopsiaLate CretaceousCanada
  • Wiehenvenator Rauhut et al., 2016 TheropodaMiddle JurassicGermany
  • Willinakaqe Nomen dubium Juárez Valieri et al., 2010 OrnithopodaLate CretaceousArgentina
  • Wintonotitan Hocknull et al., 2009 SauropodomorphaLate CretaceousAustralia
  • Wudingloong Wang et al., 2025 SauropodomorphaEarly JurassicChina
  • Wuerhosaurus Dong, 1973 ThyreophoraEarly CretaceousChina
  • Wulagasaurus Godefroit et al., 2008 OrnithopodaLate CretaceousChina
  • Wulatelong Xu et al., 2013 TheropodaLate CretaceousChina
  • Wulong Poust et al., 2020 TheropodaEarly CretaceousChina
  • Wyleyia Nomen dubium Harrison & Walker, 1973 TheropodaEarly CretaceousUnited Kingdom

X

  • Xenoceratops Ryan et al., 2012 CeratopsiaLate CretaceousCanada
  • Xenoposeidon Taylor & Naish, 2007 SauropodomorphaEarly CretaceousUnited Kingdom
  • Xenotarsosaurus Martínez et al., 1986 TheropodaLate CretaceousArgentina
  • Xenovenator Rivera-Sylva et al., 2026 TheropodaLate CretaceousMexico
  • Xiangyunloong Hu et al., 2026 SauropodomorphaEarly JurassicChina
  • Xianshanosaurus Lü et al., 2009 SauropodomorphaEarly CretaceousChina
  • Xiaosaurus Dong & Tang, 1983 OrnithischiaMiddle Jurassic–Late JurassicChina
  • Xiaotingia Xu et al., 2011 TheropodaMiddle Jurassic–Late JurassicChina
  • Xingtianosaurus Qiu et al., 2019 TheropodaEarly CretaceousChina
  • Xingxiulong Wang et al., 2017 SauropodomorphaEarly JurassicChina
  • Xinjiangovenator Rauhut & Xu, 2005 TheropodaEarly CretaceousChina
  • Xinjiangtitan Wu et al., 2013 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Xiongguanlong Li et al., 2010 TheropodaEarly CretaceousChina
  • Xixianykus Xu et al., 2010 TheropodaLate CretaceousChina
  • Xixiasaurus Lü et al., 2010 TheropodaLate CretaceousChina
  • Xixiposaurus Sekiya, 2010 SauropodomorphaEarly JurassicChina
  • Xiyunykus Xu et al., 2018 TheropodaEarly CretaceousChina
  • Xuanhanosaurus Dong, 1984 TheropodaMiddle Jurassic–Late JurassicChina
  • Xuanhuaceratops Zhao et al., 2006 CeratopsiaLate JurassicChina
  • Xunmenglong Xing et al., 2020 TheropodaEarly CretaceousChina
  • Xuwulong You et al., 2011 OrnithopodaEarly CretaceousChina

Y

  • Yamaceratops Makovicky & Norell, 2006 CeratopsiaLate CretaceousMongolia
  • Yamanasaurus Apesteguía et al., 2020 SauropodomorphaLate CretaceousEcuador
  • Yamatosaurus Kobayashi et al., 2021 OrnithopodaLate CretaceousJapan
  • Yanbeilong Jia et al., 2024 ThyreophoraEarly CretaceousChina
  • Yandusaurus He, 1979 NeornithischiaMiddle Jurassic–Late JurassicChina
  • Yangchuanosaurus Dong et al., 1978 TheropodaMiddle Jurassic–Late JurassicChina
  • Yantaloong Zhang et al., 2026 SauropodomorphaMiddle JurassicChina
  • Yehuecauhceratops Rivera-Sylva et al., 2017 CeratopsiaLate CretaceousMexico
  • Yeneen Filippi et al., 2026 SauropodomorphaLate CretaceousArgentina
  • Yimenosaurus Bai et al., 1990 SauropodomorphaEarly JurassicChina
  • Yingshanosaurus Zhu, 1994 ThyreophoraMiddle Jurassic–Late JurassicChina
  • Yinlong Xu et al., 2006 CeratopsiaMiddle Jurassic–Late JurassicChina
  • Yixianosaurus Xu & Wang, 2003 TheropodaEarly CretaceousChina
  • Yizhousaurus Zhang et al., 2018 SauropodomorphaEarly JurassicChina
  • Yongjinglong Li et al., 2014 SauropodomorphaEarly CretaceousChina
  • Ypupiara Brum et al., 2021 TheropodaLate CretaceousBrazil
  • Yuanmouraptor Zou et al., 2025 TheropodaMiddle JurassicChina
  • Yuanmousaurus Lü et al., 2006 SauropodomorphaMiddle JurassicChina
  • Yuanyanglong Hao et al., 2024 TheropodaEarly CretaceousChina
  • Yueosaurus Zheng et al., 2012 NeornithischiaEarly Cretaceous–Late CretaceousChina
  • Yuezhuornis Xu et al., 2026 TheropodaLate JurassicChina
  • Yulong Lü et al., 2013 TheropodaLate CretaceousChina
  • Yunganglong Wang et al., 2013 OrnithopodaLate CretaceousChina
  • Yunmenglong Lü et al., 2013 SauropodomorphaEarly CretaceousChina
  • Yunnanosaurus Young, 1940 SauropodomorphaEarly JurassicChina
  • Yunyangosaurus Dai et al., 2020 TheropodaEarly Jurassic–Middle JurassicChina
  • Yurgovuchia Senter et al., 2012 TheropodaEarly CretaceousUnited States
  • Yutyrannus Xu et al., 2012 TheropodaEarly CretaceousChina
  • Yuxisaurus Yao et al., 2022 ThyreophoraEarly JurassicChina
  • Yuzhoulong Dai et al., 2022 SauropodomorphaMiddle Jurassic–Late JurassicChina

Z

  • Zalmoxes Weishampel et al., 2003 OrnithopodaLate CretaceousRomania
  • Zanabazar Norell et al., 2009 TheropodaLate CretaceousMongolia
  • Zapalasaurus Salgado et al., 2006 SauropodomorphaEarly CretaceousArgentina
  • Zapsalis Nomen dubium Cope, 1876 TheropodaLate CretaceousUnited States
  • Zaraapelta Arbour et al., 2014 ThyreophoraLate CretaceousMongolia
  • Zavacephale Chinzorig et al., 2025 PachycephalosauriaEarly CretaceousMongolia
  • Zby Mateus et al., 2014 SauropodomorphaLate JurassicPortugal
  • Zephyrosaurus Sues, 1980 OrodrominaeEarly CretaceousUnited States
  • Zhanghenglong Xing et al., 2014 OrnithopodaLate CretaceousChina
  • Zhejiangosaurus Nomen dubium Lü et al., 2007 ThyreophoraLate CretaceousChina
  • Zhengheornis Wang et al., 2026 TheropodaLate JurassicChina
  • Zhenyuanlong Lü & Brusatte, 2015 TheropodaEarly CretaceousChina
  • Zhongjianosaurus Xu & Qin, 2017 TheropodaEarly CretaceousChina
  • Zhongornis Gao et al., 2008 TheropodaEarly CretaceousChina
  • Zhongyuansaurus Disputed Xu et al., 2007 ThyreophoraEarly CretaceousChina
  • Zhuchengceratops Xu et al., 2010 CeratopsiaLate CretaceousChina
  • Zhuchengtitan Mo et al., 2017 SauropodomorphaLate CretaceousChina
  • Zhuchengtyrannus Hone et al., 2011 TheropodaLate CretaceousChina
  • Ziapelta Arbour et al., 2014 ThyreophoraLate CretaceousUnited States
  • Zigongosaurus Disputed Hou et al., 1976 SauropodomorphaMiddle Jurassic–Late JurassicChina
  • Zizhongosaurus Dong et al., 1983 SauropodomorphaEarly Jurassic–Middle JurassicChina
  • Zuniceratops Wolfe & Kirkland, 1998 CeratopsiaLate CretaceousUnited States
  • Zuolong Choiniere et al., 2010 TheropodaLate JurassicChina
  • Zuoyunlong Wang et al., 2017 OrnithopodaLate CretaceousChina
  • Zupaysaurus Arcucci & Coria, 2003 TheropodaLate TriassicArgentina
  • Zuul Arbour & Evans, 2017 ThyreophoraLate CretaceousUnited States