Stem Diapsida

	Dolabrosaurus aquatilis
	Labidosaurus hamatus

Diapsida

Testudinata

Testudinata

Lepidosauriformes

	Icarosaurus siefkeri
	Lepidosauria

Archosauromorpha (Stem-Archosauria)

Parasuchia

	Belodon kupfi
	Machaeroprosopus gregorii
	Redondasaurus bermani
	Rutiodon carolinensis

Trilophosauria

Trilophosaurus buettneri

Vancleavea

Vancleavea campi

Archosauria

Archosauria

Incertae sedis
Sauropterygia

	Cryptocleidus oxoniensis
	Dolichorhynchops osborni
	Lariosaurus sp.
	Morenosaurus stocki
	Placodus gigas
	Polycotylus latipinnus

Ichthyopterygia

	Excalibrosaurus costini
	Ichthyosaurus sp.
	Stenopterygius quadriscissus

Choristodera

Champsosaurus laramiensis

Last modified 11/10/15