Region:

Fossil: Eocene

Valid: Yes

Type Designation: Kohn, 1992

Type: Representation of Lectotype

Type Repository: Tableau (1798: pl. 337, fig. 7)

Type Size: 54 x 28 mm

Type Locality: Courtagnon, France.

Synonym:

• C. angulatus Perry, 1810.

Subspecies:

• C. perdubia Gregorio, 1894.
• C. postalensis Gregorio, 1894.
• C. subdiadema Gregorio, 1890.