Family Pycnasterides Pomel 1869 (sea urchin)
Echinoidea - Irregularia - Pycnasterides
Full reference: A. Pomel. 1869. Revue des échinodermes et de leur classification pour servir d'introduction à l'étude des fossiles. Deyrolle, Paris 1-67
Parent taxon: Atelostomata according to A. Pomel 1869
Sister taxa: Acrolusiidae, Asternata, Aulacopygus, Collyritidae, Disasteridae, Holasteroida, Notidisaster, Orbigniana, Spatangoida, Sternata, Tithoniidae
Subtaxa: none
Ecology: epifaunal grazer-deposit feeder
Distribution: there are no occurrences of Pycnasterides in the database