Open Paleo

Koreanosaurus

Huh et al., 2011 ko-ree-AH-no-SOR-us

From 'Koreano-' (pertaining to Korea) and Greek 'sauros' (lizard); meaning 'Korean lizard'

83.6–72.2 million years ago Campanian, Late Cretaceous
Late Cretaceous stages

Koreanosaurus is a genus of orodromine neornithischian dinosaur that lived during the Campanian stage of the Late Cretaceous of what is now South Korea. One species has been described, Koreanosaurus boseongensis.

Diagnosis

  1. Elongated anterior cervicals with ratio of maximum length (pre- to postzygapophyses) to transverse width about 2.7
  2. Blade-like keel on ventral surface of all cervical centra; sharp ventral keel on at least first seven dorsal centra
  3. Fused scapulocoracoid plate
  4. Highly-keeled posterior border of proximal ulna
  5. Femoral head and shaft forming obtuse 135° angle
  6. Femoral head anteroposteriorly elongated
  7. Low hindlimb ratio of 1.07 (tibia/femur)
  8. Extreme pectoral girdle development with humerus and scapula somewhat longer than femur

Species

Koreanosaurus boseongensis Huh et al., 2011

Type species

Named for Boseong, the locality on the southern coast of the Korean Peninsula where the holotype and referred specimens were recovered.

Holotype
KDRC-BB2 , Korea Dinosaur Research Center, Chonnam National University
Material
Partial upper skeleton lacking the skull
Horizon
Seonso Conglomerate Formation, Campanian, Late Cretaceous , 83.6–72.2 million years ago
Locality
Site 5, South Jeolla, South Korea

References

  1. Huh, M.; Lee, D. G.; Kim, J. K.; Lim, J. D.; Godefroit, P. (2011). A new basal ornithopod dinosaur from the Upper Cretaceous of South Korea. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 259(1): 1-24. Schweizerbart. doi:10.1127/0077-7749/2010/0102 huh2011a