Reptilia - Eosuchia - Sphenodontidae
Full reference: G. G. Simpson. 1926. American terrrestrial Rhynchocephalia. American Journal of Science 12(67):12-16
Parent taxon: Sphenodontidae according to J. A. Herrera-Flores et al. 2018
See also Apesteguia et al. 2012, Hay 1930 and Simpson 1926
Sister taxa: Ankylosphenodon, Brachyrhinodontinae, Cynosphenodon, Derasmosaurus, Eilenosaurus, Elachistosuchus, Glevosaurus, Leptosaurus, Oenosaurus, Opisthodontia, Paleollanosaurus, Piocormus, Scharschengia, Sigmala, Simila, Sphenodon, Sphenodontinae, Sphenovipera, Zapatadon
Subtaxa: Theretairus antiquus
Type: Theretairus antiquus
Ecology:
Distribution:
• Jurassic of United States (2: Utah, Wyoming collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.