†subfamily Aviturinae Gubin 1991 (hellbender)
Full reference: Y. M. Gubin. 1991. Paleocene salamanders from southern Mongolia. Paleontological Journal 25:91-102
Parent taxon: Cryptobranchidae according to Y. M. Gubin 1991
Sister taxa: Andrias, Cryptobranchus, Eoscapherpeton
Subtaxa: Aviturus Zaissanurus
Ecology: amphibious carnivore
Distribution: found only at Aguy-Dats-Bulak [SMPE] (Paleocene of Mongolia)