1978  Pachyrotoceras Zhao, Liang & Zheng: 90, 177.
     2002  Pericarinoceras.-Leonova: S105.

Type species: Pachyrotoceras laevigatum Zhao, Liang & Zheng, 1978, p.90; OD.

[Zhao et al., 1978]: Shell rather small, evolute, thickly discoidal with broad, flattened venter, marked by weak median
keel and faint grooves beside. Whorls much depressed, with rectangular section, much wider than high. Lateral sides
narrow and slightly concave. Surface smooth. Umbilicus wide and deep, bordered by inclined walls and flared rims.
Suture goniatitic, with wide, more or less depressed outer saddle.