Bajocian

170.9–168.2 million years ago Middle Jurassic

170.9–168.2 million years ago

Middle Jurassic stages

The genera whose type species is known from the Bajocian. A genus known from several stages appears on the page of each.

Genera known from the Bajocian

Abrosaurus Ouyang, 1989 EusauropodaBajocian–Oxfordian (170.9–154.8 Ma)Chinaunder dispute
Agilisaurus Peng, 1992 NeornithischiaBajocian–Oxfordian (170.9–154.8 Ma)China
Analong Ren et al., 2020 MamenchisauridaeBajocian (170.9–168.2 Ma)China
Asfaltovenator Rauhut & Pol, 2019 AllosauroideaToarcian–Bajocian (184.2–168.2 Ma)Argentinaunder dispute
Bashanosaurus Dai et al., 2022 StegosauriaBajocian (170.9–168.2 Ma)China
Ceratocaudia Natarajan et al., 2026 MacronariaToarcian–Bajocian (184.2–168.2 Ma)India
Cetiosaurus Owen, 1841 CetiosauridaeBajocian–Bathonian (170.9–165.3 Ma)United Kingdom
Chialingosaurus Nomen dubium Young, 1959 StegosauriaBajocian–Oxfordian (170.9–154.8 Ma)China
Chuandongocoelurus He, 1984 TetanuraeBajocian–Oxfordian (170.9–154.8 Ma)China
Chuanjiesaurus Fang et al., 2000 MamenchisauridaeBajocian (170.9–168.2 Ma)China
Chungkingosaurus Dong et al., 1983 StegosauriaBajocian–Oxfordian (170.9–154.8 Ma)Chinaunder dispute
Condorraptor Rauhut, 2005 PiatnitzkysauridaeAalenian–Bajocian (174.7–168.2 Ma)Argentina
Dashanpusaurus Peng et al., 2005 MacronariaBajocian–Oxfordian (170.9–154.8 Ma)China
Datousaurus Dong & Tang, 1984 EusauropodaBajocian–Oxfordian (170.9–154.8 Ma)China
Duriavenator Benson, 2008 MegalosaurinaeBajocian (170.9–168.2 Ma)United Kingdom
Eoabelisaurus Pol & Rauhut, 2012 CeratosauriaAalenian–Bajocian (174.7–168.2 Ma)Argentinaunder dispute
Eomamenchisaurus Lü et al., 2008 MamenchisauridaeAalenian–Bathonian (174.7–165.3 Ma)China
Gasosaurus Dong & Tang, 1985 TetanuraeBajocian–Oxfordian (170.9–154.8 Ma)Chinaunder dispute
Gigantspinosaurus Ouyang, 1992 StegosauriaBajocian–Oxfordian (170.9–154.8 Ma)China
Gongbusaurus Nomen dubium Dong et al., 1983 OrnithischiaBajocian–Oxfordian (170.9–154.8 Ma)Chinaunder dispute
Hexinlusaurus Barrett et al., 2005 NeornithischiaBajocian–Oxfordian (170.9–154.8 Ma)China
Huayangosaurus Dong et al., 1982 StegosauriaBajocian–Oxfordian (170.9–154.8 Ma)Chinaunder dispute
Isaberrysaura Salgado et al., 2017 StegosauriaBajocian (170.9–168.2 Ma)Argentina
Isanosaurus Buffetaut et al., 2000 SauropodaNorian–Tithonian (227.3–143.1 Ma)Thailandunder dispute
Kaijiangosaurus Disputed He, 1984 TetanuraeBajocian–Oxfordian (170.9–154.8 Ma)China
Leshansaurus Li et al., 2009 AfrovenatorinaeBajocian–Oxfordian (170.9–154.8 Ma)China
Lingwulong Xu et al., 2018 DicraeosauridaeToarcian–Bajocian (184.2–168.2 Ma)China
Magnosaurus Huene, 1932 AfrovenatorinaeBajocian (170.9–168.2 Ma)United Kingdom
Nebulasaurus Xing, 2013 EusauropodaAalenian–Bajocian (174.7–168.2 Ma)China
Omeisaurus Young, 1939 MamenchisauridaeBajocian–Oxfordian (170.9–154.8 Ma)China
Ozraptor Nomen dubium Long & Molnar, 1998 TheropodaBajocian (170.9–168.2 Ma)Australiaunder dispute
Piatnitzkysaurus Bonaparte, 1979 PiatnitzkysauridaeAalenian–Bajocian (174.7–168.2 Ma)Argentina
Protognathosaurus Olshevsky, 1991 EusauropodaBajocian–Oxfordian (170.9–154.8 Ma)China
Shidaisaurus Wu et al., 2009 MetriacanthosauridaeBajocian (170.9–168.2 Ma)Chinaunder dispute
Shunosaurus Dong et al., 1983 EusauropodaBajocian–Oxfordian (170.9–154.8 Ma)China
Spinophorosaurus Remes et al., 2009 EusauropodaBajocian–Bathonian (170.9–165.3 Ma)Nigerunder dispute
Tuojiangosaurus Dong et al., 1977 StegosauridaeBajocian–Oxfordian (170.9–154.8 Ma)China
Xiaosaurus Dong & Tang, 1983 OrnithischiaBajocian–Oxfordian (170.9–154.8 Ma)Chinaunder dispute
Xuanhanosaurus Dong, 1984 TetanuraeBajocian–Oxfordian (170.9–154.8 Ma)Chinaunder dispute
Yandusaurus He, 1979 NeornithischiaBajocian–Oxfordian (170.9–154.8 Ma)China
Yangchuanosaurus Dong et al., 1978 MetriacanthosauridaeBajocian–Oxfordian (170.9–154.8 Ma)China
Yantaloong Zhang et al., 2026 EusauropodaAalenian–Bathonian (174.7–165.3 Ma)Chinaunder dispute
Yingshanosaurus Zhu, 1994 StegosauriaBajocian–Oxfordian (170.9–154.8 Ma)China
Yuanmouraptor Zou et al., 2025 MetriacanthosauridaeAalenian–Bajocian (174.7–168.2 Ma)China
Yuanmousaurus Lü et al., 2006 MamenchisauridaeAalenian–Bathonian (174.7–165.3 Ma)China
Yuzhoulong Dai et al., 2022 MacronariaBajocian–Oxfordian (170.9–154.8 Ma)China
Zigongosaurus Disputed Hou et al., 1976 MamenchisauridaeBajocian–Oxfordian (170.9–154.8 Ma)China
Zizhongosaurus Dong et al., 1983 SauropodaToarcian–Bajocian (184.2–168.2 Ma)China