Osteopygis

Osteopygis is a genus of extinct turtle.[2] Osteopygis, as traditionally seen, is a chimera: the postcrania (including the holotype) belong to a non-marine stem-cryptodire, whilst the crania belong to sea turtles. In 2005, the referred material was split between two taxa: the postcrania remained in Osteopygis, while the crania were reassigned to Euclastes wielandi.[3]

Osteopygis
Temporal range: Late Cretaceous – Eocene,
Osteopygis emarginatus carapace
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Pantestudines
Clade: Testudinata
Family: †Macrobaenidae
Genus: †Osteopygis
Cope, 1868
Type species
Osteopygis emarginatus
Cope, 1868
Species[1]
  • O. emarginatus Cope, 1868
  • O. backmani Russell, 1934
  • O. kranzi Weems, 2014
  • O. russelli Brinkman, 2015

References
  1. Gentry, A.D.; Kiernan, C.R.; Parham, J.F. (2022). "A large non-marine turtle from the Upper Cretaceous of Alabama and a review of North American "Macrobaenids"". The Anatomical Record. doi:10.1002/ar.25054.
  2. "†Osteopygis Cope 1868". Paleobiology Database. Fossilworks. Retrieved 17 December 2021.
  3. A reassessment of the referral of sea turtle skulls to the genus Osteopygis (Late Cretaceous, New Jersey, USA)
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