†subfamily Chelospharginae Zangerl 1953 (sea turtle)
Reptilia - Testudines - Protostegidae
Full reference: R. Zangerl. 1953. The vertebrate fauna of the Selma Formation of Alabama. Part III. The turtles of the family Protostegidae. Fieldiana: Geology Memoirs 3(3):63-133
Parent taxon: Protostegidae according to O. W. M. Kuhn 1966
See also Karl et al. 2012, Weems 1988 and Zangerl 1953
Sister taxa: Archelon, Bouliachelys, Chelosphargis, Cratochelone, Desmatochelys, Notochelone, Pneumatoarthrus, Protostega, Protosteginae, Rhinochelys, Santanachelys, Terlinguachelys
Subtaxa: Teguliscapha
Ecology: aquatic omnivore
Distribution:
• Cretaceous of the Russian Federation (5 collections)
Total: 5 collections including 6 occurrences