†suborder Neochoristodera Evans and Hecht 1993 (choristodere)

Reptilia - Choristodera

Synonym: Champsosauriformes Hay 1929 [replaced name]

Parent taxon: Choristodera according to R. Matsumoto et al. 2019

See also Gao and Fox 2005, Gao and Li 2007, Matsumoto et al. 2013 and Matsumoto et al. 2007

Sister taxa: Coeruleodraco, Cteniogenyidae, Cteniogenys, Hyphalosauridae, Hyphalosaurus, Irenosaurus, Khurendukhosaurus, Lazarussuchus, Monjurosuchidae, Monjurosuchus, Pachystropheus, Philydrosaurus, Shokawa

Subtaxa: Champsosauridae Champsosaurus Ikechosaurus Simoedosauridae Simoedosaurus Tchoiria

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Ecology:

Distribution:

• Eocene of Belgium (2 collections), Kazakhstan (1)

• Paleocene of Canada (6: Alberta, Saskatchewan), France (2), Kazakhstan (1), United States (29: Montana, North Dakota, Utah, Wyoming)

• Cretaceous of Austria (1), Canada (94: Alberta, Nunavut, Saskatchewan), China (8), Japan (1), Mongolia (4), United States (100: Colorado, Montana, North Dakota, South Dakota, Texas, Utah, Wyoming)

Total: 249 collections including 260 occurrences

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