Ichthyosaurs Name Novelty Status Authors Age Type locality Location Notes Images BaptanodonMarsh, O. C., 1880, Note on Sauranodon: American Journal of Science, 3rd series, v. 19, n. 4, p. 491.Gen et comb novvalidMarshLate Jurassic (Oxfordian)Sundance FormationMoved from "Sauranodon" natans Marsh, 1879.O. C. Marsh. 1879. A new order of extinct reptiles (Sauranodonta), from the Jurassic Formation of the Rocky Mountains. The American Journal of Science and Arts, series 3
Pterosaurs
Name Status Authors Age Unit Location Notes Cretornis Valid Fritsch middle Cretaceous (early Turonian)Jizera FormationA member of Azhdarchoidea. Rhamphocephalus Valid Seeley Middle Jurassic (Bathonian)Taynton Limestone FormationA rhamphorhynchoid.
Synapsids
Non-mammalian
Name Status Authors Age Unit Location Notes ImagesStereorhachisNomen dubiumGaudryLate CarboniferousCoal depositsA member of Eothyrididae.
References