Alternative spelling: Echinina
Parent taxon: Camarodonta according to A. Kroh and A. B. Smith 2010
See also Clark and Twitchell 1915
Sister taxa: Odontophora, Parasaleniidae, Temnopleuridea
Subtaxa: Echinidae Parechinidae Triplechinidae
Ecology: epifaunal grazer-deposit feeder
Distribution:
• Quaternary of France (1 collection), Greece (1), Jamaica (1), Mauritius (1), Spain (29), United States (1: South Carolina)
• Pliocene of Belgium (1), United States (9: California, North Carolina, South Carolina, Virginia)
• Miocene of Algeria (6), Argentina (1), Australia (1), Austria (1), Belgium (1), Cyprus (3), Egypt (1), France (3), Germany (1), Italy (6), Malta (1), Micronesia (1), Morocco (1), Spain (2), Switzerland (2), United States (2: Florida, South Carolina)
• Oligocene to Miocene of Argentina (1)
• Oligocene to Pliocene of Argentina (1)
• Oligocene of New Zealand (1), United States (3: Alabama, North Carolina)
• Eocene to Oligocene of Argentina (2)
• Eocene of Argentina (1), the United Kingdom (1), United States (3: Alabama, Georgia, South Carolina)
• Paleocene of United States (1: New Jersey)
• Cretaceous of Brazil (1), Egypt (1), France (3), Germany (1), Portugal (18), Switzerland (4)
• Jurassic of Canada (1: Yukon), Saudi Arabia (1), the United Kingdom (1)
• Triassic of Hungary (1), Switzerland (3)
• Devonian of Germany (5)
Total: 131 collections including 139 occurrences