Echinoidea - Euechinoidea - Triadocidaridae

Parent taxon: Triadocidaridae according to A. B. Smith 1994

Sister taxa: Levicidaris, Mikrocidaris, Parvicidaris, Triadocidaris, Vinchuscanchaia, Zardinechinus

Subtaxa: none

Ecology: epifaunal grazer-deposit feeder