†subfamily Pseudotropitinae Donovan and Forsey 1973 (ammonite)
Cephalopoda - Ammonitida - Arietitidae
Parent taxon: Arietitidae according to M. K. Howarth 2013
Sister taxa: Aegoceras albense, Agassiceratinae, Alsatitinae, Arietitinae, Bartoliniceras, Hypasteroceratinae
Subtaxa: Pseudotropites
Ecology: fast-moving nektonic carnivore
Distribution: found only at First Canyon, float from upper division, Shoshone Mountains (Jurassic of Nevada)