1983  Geermuceras Liang: 611, 614.

Type species: Geermuceras platum Liang, 1983, p.612 [OD].

A:   Shell thickly discoidal, venter strongly flattened. Flanks slightly concave. Umbilicus rather narrow, with subangular shoulder.
G:   Suture ceratitic, with narrow ventral lobe, wide lateral lobe. Serrations of lateral lobe divided into two parts, with
auxiliary lobes.