1947  Neodimorphoceras (Pinoceras) Ruzhentsev: 523.
     1960  Neodimorphoceras (Pinoceras).-Ruzhentsev: 209.
     1962  Neodimorphoceras (Pinoceras).-Osnovy: 373.

Type species: Neodimorphoceras (Pinoceras) daixense Ruzhentsev,
1947, p.523 [OD].

Neodimorphoceras SCHMIDT, 1925

A:   Conch form lenticular or discoidal; umbilicus almost closed.
Venter rounded, rarely concave.
C:   Ribs confined to early whorls; shell surface at maturity
usually rather smooth, biconvex growth lines being very faint.
G:   Prongs of ventral lobe prominently bifid; first lateral
saddle subangular.

Subgenera: Neodimorphoceras (Neodimorphoceras) SCHMIDT, 1925,
Neodimorphoceras (Pinoceras) RUZHENTSEV, 1947

Neodimorphoceras (Pinoceras) RUZHENTSEV, 1947:

A:   Ventral side broadly or narrowly rounded, without groove,
even at large whorls. [Only type species known].