Echinoidea - Euechinoidea - Pseudodiadematidae

PaleoDB taxon number: 167187

Alternative combinations: Hemicidaris libyca, Heterodiadema lybicum

Belongs to Heterodiadema according to R. Berndt 2003

Sister taxa: Heterodiadema buhaysensis, Heterodiadema ornatum

Ecology: epifaunal grazer-deposit feeder