1950 in paleontology

Dinosaurs Newly named dinosaurs Data courtesy of George Olshevsky's dinosaur genera list.

Name Status Authors Age Unit Location Notes Images AcrocanthosaurusStovall, J.W. and W. Langston. 1950. Acrocanthosaurus atokensis, a new genus and species of Lower Cretaceous Theropoda from Oklahoma. American Midland Naturalist 43 (3): pp. 696-728. Valid taxon Stovall Langstonlate Aptian-early AlbianAntlers Formation Cloverly Formation Twin Mountains Formation (, , , )A sail-backed carcharodontosaurid. PachyrhinosaurusSternberg, C.H. 1950. Pachyrhinosaurus canadensis, representing a new family of Ceratopsia. Bull. Natl. Mus. Can. 118: pp. 109- 120. Valid taxon C. M. Sternberg EdmontonianHorseshoe Canyon Formation () ()A centrosaurine.

Plesiosaurs Plesiosaur gastroliths documented.Shuler (1950). Sanders, Manley, and Carpenter (2001), "Table 12.1" page 167.

Synapsids Non-mammalian

Name Status Authors Age Unit Location Notes ImagesKitchingiaJunior synonymBroom and GeorgeLate PermianCistecephalus Assemblage ZoneA junior synonym of Rhachiocephalus.LeontosaurusJunior synonymBroom and GeorgeLate PermianDicynodon Assemblage ZoneA junior synonym of Sycosaurus.SilphoictidoidesValidFriedrich von HueneLate PermianCistecephalus Assemblage ZoneA member of Gorgonopsia.TheropsodonValidFriedrich von HueneMiddle TriassicCynognathus Assemblage ZoneA traversodontid.TigrisaurusJunior synonymBroom and GeorgeLate PermianCistecephalus Assemblage ZoneA junior synonym of Dinogorgon.

References

Sanders F, Manley K, Carpenter K. Gastroliths from the Lower Cretaceous sauropod Cedarosaurus weiskopfae. In: Tanke D.H, Carpenter K, editors. Mesozoic vertebrate life: new research inspired by the paleontology of Philip J. Currie. Indiana University Press; Bloomington, IN: 2001. pp. 166–180. Shuller; 1950; A new elasmosaur from the Eagle Ford shale of Texas - The elasmosaur and its environment (Part II); University press in Dallas southern Methodist University. Fondren Science Series pp. 1–32