Amphibia - Nectridea

Parent taxon: Nectridea according to R. L. Carroll 1988

Sister taxa: Arizonerpeton, Batrachiderpeton, Diceratosaurus, Diploceraspis, Keraterpeton, Keraterpetontidae, Ptyonius, Scincosauridae, Scincosaurus, Urocordylus

Subtaxa: Crossotelos, Ctenerpeton, Lepterpeton, Sauropleurinae

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Ecology: