†family Champsosauridae Cope 1876 (champsosaur)

Reptilia - Choristodera - Champsosauridae

Parent taxon: Neochoristodera according to K. -Q. Gao and R. C. Fox 2005

See also Benton 1985, Boulenger 1893, Carroll 1988, Cvancara and Hoganson 1993, Erickson 1972, Erickson 1987, Estes 1964, Estes and Berberian 1970, Evans 1990, Evans 1991, Gao and Fox 1998, Gao and Li 2007, Hay 1902, Hay 1930, Kuhn 1946, Kuhn 1966, Peng et al. 2001 and Zittel 1890

Sister taxa: Champsosaurus, Ikechosaurus, Mengshanosaurus, Simoedosauridae, Tchoiria

Subtaxa: Champsosaurichnus Eotomistoma

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Type: Champsosaurus

Ecology: amphibious piscivore

Distribution:

• Paleocene of Canada (4: Alberta, Saskatchewan collections), United States (2: Montana, Utah)

• Cretaceous of Austria (1), Canada (8: Alberta), China (4), Mongolia (1), United States (8: Montana, Wyoming)

Total: 28 collections each including a single occurrence

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