Order Cidaroida Claus 1880 (pencil urchin)
PaleoDB taxon number: 32782
Alternative spelling: Cidaridae
Full reference: C. F. W. Claus. 1880. Grundzüge der Zoologie. 4th edition, Elwertsche Universitätsbuchhandlung, Marburg & Leipzig 1-2
Parent taxon: Cidaroidea according to A. B. Smith 2015
Sister taxa: none
Subtaxa: Cidaridea, Delocidaris, Diplocidaridae, Fellius, Heterocidaridae, Hirudocidaris, Histocidaridea, Leurocidaris, Menocidaris, Mesodiadema, Mikrocidari, Minicidaris, Miocidaridae, Oedematocidaris, Palmerius, Paracidaridae, Polycidaridae, Prophyllacanthus, Rhabdocidaridae, Serpianotiaridae, Tretocidaris, Triadotiaridae
Ecology: slow-moving low-level epifaunal grazer-omnivore