Echinoidea - Cidaroida

Parent taxon: Cidaroida according to A. Kroh and A. B. Smith 2010

Sister taxa: Cidaridea, Delocidaris, Dorocidaris, Fellius, Hirudocidaris, Histocidaridea, Leurocidaris, Menocidaris, Mesodiadema, Mikrocidari, Minicidaris, Miocidaridae, Nenoticidaridae, Oedematocidaris, Palmerius, Polycidaridae, Prophyllacanthus, Rhabdocidaridae, Serpianotiaridae, Tretocidaris, Triadotiaridae

Subtaxa: Diplocidaris, Rolliericidaris, Tetracidaris

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Ecology: slow-moving low-level epifaunal grazer-omnivore