Reptilia - Eosuchia - Clevosauridae
Full reference: N. C. Fraser. 1993. A new sphenodontian from the early Mesozoic of England and North America: implications for correlating early Mesozoic continental deposits. In: S. G. Lucas & M. Morales (eds.), The Nonmarine Triassic. New Mexico Museum of Natural History and Science Bulletin 3:135-139
Parent taxon: Eusphenodontia according to J. A. Herrera-Flores et al. 2018
See also Fraser 1993, Hsiou et al. 2015 and Hsiou et al. 2019
Sister taxa: Lanceirosphenodon, Microsphenodon, Neosphenodontia, Opisthiamimus, Polysphenodon
Subtaxa: Brachyrhinodon Clevosaurus
Ecology:
Distribution:
• Jurassic of Canada (6: Nova Scotia collections), China (2), Mexico (4), South Africa (1), the United Kingdom (1)
• Triassic of Belgium (1), Brazil (3), Luxembourg (1), Switzerland (1), the United Kingdom (15), United States (1: Texas)
Total: 36 collections including 39 occurrences