†suborder Neochoristodera Evans and Hecht 1993 (choristodere)

Reptilia - Choristodera

Synonym: Champsosauriformes Hay 1930 [replaced name]

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

See also Gao and Fox 2005, Gao and Li 2007, Hay 1930, Matsumoto et al. 2013 and Matsumoto et al. 2007

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

Subtaxa: Champsosauridae Champsosaurus Ikechosaurus Simoedosauridae Tchoiria

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Ecology:

Distribution:

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

• Clarkforkian of United States (4: Montana, Wyoming)

• Cf2 of United States (1: Wyoming)

• Cf3 of United States (2: Wyoming)

• Paleocene of Canada (7: Alberta, Saskatchewan), France (2), Kazakhstan (1), United States (30: Colorado, Montana, North Dakota, Texas, Utah, Wyoming)

• Cretaceous of Austria (1), Canada (99: Alberta, Nunavut, Saskatchewan), China (9), Japan (1), Mongolia (5), United States (105: Colorado, Montana, New Jersey, North Dakota, South Dakota, Utah, Wyoming)

Total: 270 collections including 281 occurrences

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