''Anoploceras'' is a genus of Middle and Upper Triassic nautiloids included in the Tainoceratidae, known from eastern Europe. The shell is evolute with only a slight overlap of previous whorls. Whorl section is subquadrate, like ''

Pleuronautilus ''Pleuronautilus'' is a nautiloid genus; family Tainoceratidae, order Nautilida. Description The shell is evolute, discoidal; whorl section subquadrade, flanks generally straight but may converge toward the venter. Inner flanks have course ...

'', only depressed. Flanks have conspicuous ribs that may be somewhat sinuous. '' Holconautilus'' has a more rounded venter, and flanks, and is more evolute. '' Enoploceras'' has weaker ribs that expand into nodes on the umbilical and ventro-lateral shoulders, and a small umbilical perforation. '' Encoiloceras'' has strong ribbing, a large umbilical perforation, and a shallow groove along the venter.

''References''

* Bernhard Kummel, 1964. Nautiloidea-Nautilida. Treatise on Invertebrate Paleontology, Part K. Geological Soc. of America and University of Kansas press. Teichert and Moore (eds) Prehistoric nautiloid genera Middle Triassic first appearances Late Triassic extinctions {{paleo-Nautiloidea-stub