†family Archiaciidae Cotteau and Triger 1869 (sea urchin)
Echinoidea - Irregularia - Archiaciidae
Alternative spelling: Archiacidae
Full reference: G. H. Cotteau and J. Triger. 1869. Echinides du département de la Sarthe, considérés d'un point de vue zoologique et stratigraphique; JB Baillière et Fils, Paris (5)385-457
Parent taxon: Neognathostomata according to A. Kroh and A. B. Smith 2010
See also Berndt 2003, Kier 1962, Kier 1966 and Smith 1991
Sister taxa: Apatopygidae, Bothryopneustes, Cassiduloida, Clypeasteroida, Clypeidae, Clypeolampadidae, Echinolampadoida, Nucleolitidae, Pygaulidae
Subtaxa: Acriaster Archiacia Gentilia
Ecology: epifaunal grazer-deposit feeder
Distribution: