1978  Megatrochoceras Yang: 158.

Type species: Megatrochoceras striatum Yang, 1978, p. 158 [OD].

A:   Conch very large, subdiscoidal and involute, with very narrow umbilicus. Ventral side broadly rounded,
       becoming oxycone at maturity.
B:   Ornamentation consisting of biconvex growth lines forming ventral sinus.
G:   Ventral lobe wide,  with siuous sides, median saddle higher than half the height of entire lobe; ventrolateral saddle
       narrowly rounded. Adventitious lobe acute, with sinuous dorsal side.

[Relationship questionable, age maybe upper Bashkirian].