Camarocarcinus Holland & Cvancara, 1958: 499.
Type species. Camarocarcinus arnesoni Holland & Cvancara, 1958, by original designation.
Species included. Camarocarcinus arnesoni Holland & Cvancara, 1958, C. obtusus Jakobsen & Collins, 1979, and C. quinquetuberculatus Collins & Wienberg Rasmussen, 1992.
Material examined. Camarocarcinus arnesoni: well-preserved carapace, Paleocene, Cannonball Formation, Burleigh County, North Dakota (U.S.A.) (MGSB unregistered; Fig. 15E–G); C. quinquetuberculatus: holotype, carapace with thoracic sternum and mxp3, Paleocene, Turritellakløft Member, Agatdal Formation, central Nûgssuaq, West Greenland (MGUH 21.609; Fig. 15A–D).