Family Toxopneustidae Troschel 1872 (sea urchin)
Full reference: F. H. Troschel. 1872. Die Familie der Echinocidariden (1). Archiv für Naturgeschichte 38:293-356
Parent taxon: Odontophora according to A. Kroh and A. B. Smith 2010
Sister taxa: Echinometridae, Strongylocentrotidae
Subtaxa: Goniopneustes, Gymnechinus, Lytechinus, Nudechinus, Oligophyma, Pseudoboletia, Pseudocentrotus, Schizechinus, Scholiechinus, Sphaerechinus, Toxopneustes, Tripneustes
Type: Toxopneustes
Ecology: epifaunal grazer-deposit feeder