1951  Pericyclus (Hammatocyclus) Schindewolf, p.81.
     1951  Pericyclus (Hammatocyclus) Schindewolf, p.81.
     1951  Ammonellipsites (Hammatocyclus).-Schindewolf: 309.
     1957  Ammonellipsites (Hammatocyclus).-Gordon: 32.
     1980  Hammatocyclus.-Kuzina: 67.

Type species: Pericyclus (Hammatocyclus) homoceratoides Schindewolf, 1951, p.82  [OD].

Similar to Pericyclus, conch form thickly-discoidal, with moderately wide umbilicus. Sculpture in early stages
with nodes and small ribs on umbilcal margin, later smooth; constrictions may be present.

[KUZINA 1980, p.86: Conch quite large, serpenticone, very thin.  Whorls moderately involute.  Umbilicus wide.  
Sculpture of straight weak ribs.  Ventral lobe not wide, with rounded elements and low median saddle.  
First lateral saddle wide and rounded.  Lateral lobe very short, rounded at the base.]