Reptilia - Eosuchia - Sphenodontidae

Full reference: T. E. Rasmussen and G. Callison. 1981. A new herbivorous sphenodontid (Rhynchocephalia: Reptilia) from the Jurassic of Colorado. Journal of Paleontology 55(5):1109-1116

Parent taxon: Opisthodontia according to J. A. Herrera-Flores et al. 2018

See also Apesteguia et al. 2012, Apesteguía and Novas 2003, Rasmussen and Callison 1981 and Simon and Kellner 2003

Sister taxa: Alamitosphenos, Fraserosphenodon, Kawasphenodon, Priosphenodon, Sphenotitan, Trullidens

Subtaxa: Eilenodon Kaikaifilusaurus Patagosphenos Toxolophosaurus

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Ecology:

Distribution:

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