Family Triplechinidae (sea urchin)
Echinoidea - Camarodonta - Triplechinidae
Parent taxon: Echinina according to W. B. Clark and M. W. Twitchell 1915
Sister taxa: Echinidae, Parechinidae
Subtaxa: none
Ecology: epifaunal grazer-deposit feeder
Distribution: there are no occurrences of Triplechinidae in the database