Toxolophosaurus
''Toxolophosaurus'' was a sphenodont from the Early Cretaceous-age Kootenai Formation of Montana. Discovery ''Toxolophosaurus cloudi'' was found by Olson in 1960 in the Kootenai Formation, 223.75 feet above the base of the Kootenai. Classification ''Toxolophosaurus'' was placed in Sphenodontidae by Michael Benton in 1985. It is closely related to ''Priosphenodon'' and ''Eilenodon''. Diet ''Toxolophosaurus'' was herbivorous. See also *Lepidosauromorpha *Lepidosauria * Sphenodontia / Rhynchocephalia Rhynchocephalia (; ) is an order of lizard-like reptiles that includes only one living species, the tuatara (''Sphenodon punctatus'') of New Zealand. Despite its current lack of diversity, during the Mesozoic rhynchocephalians were a diverse gr ... * Opisthodontia *'' Opisthias'' References Early Cretaceous reptiles of North America Sphenodontia {{cretaceous-reptile-stub ...
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Eilenodon
''Eilenodon'' is an extinct genus of rhynchocephalian reptile from the Late Jurassic Morrison Formation of western North America,Foster, J. (2007). "Table 2.1: Fossil Vertebrates of the Morrison Formation." ''Jurassic West: The Dinosaurs of the Morrison Formation and Their World''. Indiana University Press. pp. 58-59. present in stratigraphic zone 4.Foster, J. (2007). "Appendix." ''Jurassic West: The Dinosaurs of the Morrison Formation and Their World''. Indiana University Press. pp. 327-329. The only known species of this genus was ''Eilenodon robustus''. It was a member of a group of rhynchocephalians called the eilenodontines, which were large, herbivorous members of Rhynchocephalia, the order of reptiles which contains the modern tuatara (''Sphenodon''). The generic name "''Eilenodon''" is Greek for "packed teeth", in reference to its closely packed teeth. The specific name, "''robustus''", refers to the strong build of the jaws. Description ''Eilenodon robustus'' is th ...
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