pt. 1887  Thalassoceras Gemmellaro: 69.
     1960  Aristoceratoides Ruzhentsev: 206.
     1962  Aristoceratoides.- Osnovy: 371.
     1971  Aristoceratoides.- Beinert: 198.
     2002  Aristoceratoides.-Leonova: S41.

Type species: Thalassoceras varicosum Gemmellaro, 1887, p.74 [OD].

A:   Conch form globose, whorl width greater than height.
B:   Growth lamellae weak to strong, with ventrolateral ridge.
C:   No transverse plications.
G:   Suture elements at their base simply digitate, digits restricted to lower halves of lobes.

[Ruzhentsev, 1960, p.206: Conch wide, with ventrolateral furrows, along a strong salient of the growth lines. Suture more
primitive than that of Aristoceras.]