Full reference: A. Kroh and A. B. Smith. 2010. The phylogeny and classification of post-Palaeozoic echinoids. Journal of Systematic Palaeontology 8(2):147-212
Parent taxon: Camarodonta according to A. Kroh and A. B. Smith 2010
Sister taxa: Echinidea, Parasaleniidae, Temnopleuridea
Subtaxa: Echinometridae Strongylocentrotidae Toxopneustidae
Ecology: epifaunal grazer-deposit feeder
Distribution:
• Quaternary of Barbados (1 collection), Belize (1), Canada (2: British Columbia, New Brunswick), Egypt (3), Eritrea (1), France (1), French Polynesia (1), Greenland (16), Iceland (2), Jamaica (1), Japan (1), Mauritius (1), Mexico (5), Saudi Arabia (2), United States (29: Alaska, California, Florida, Hawaii, Massachusetts, Oregon, South Carolina), Vanuatu (1)
• Pliocene to Pleistocene of Egypt (1)
• Pliocene of Belgium (1), the Dominican Republic (1), Egypt (1), Fiji (3), Japan (5), Mexico (1), United States (10: California, Florida)
• Miocene to Pliocene of Curaçao (1), Japan (1)
• Miocene of Algeria (4), Cuba (1), Egypt (1), Fiji (1), Jamaica (1), Japan (1), Morocco (1), New Caledonia (1), Northern Mariana Islands (2), United States (6: California)
• Oligocene of United States (3: California, Oregon, Texas)
• Eocene of Japan (1)
• Cretaceous of Jamaica (1)
Total: 117 collections including 131 occurrences