†suborder Endoceratina Flower 1950 (nautiloid)
Parent taxon: Nautiloidea according to W. C. Sweet 1958
Sister taxa: Actinoceratina, Ascoceratina, Basslerocerida, Discosorina, Eudoceratidae, Gyroceras, Michelinoceratina, Nautilida, Oncoceratina, Orthochoanites, Sueroceras, Tarphyceratina
Subtaxa: Cyrtovaginoceratidae
Ecology: fast-moving nektonic carnivore
Distribution: there are no occurrences of Endoceratina in the database