Order
Spatangoida
Spatangoida
4 species in this taxon
order of echinoderms Spatangoida (Spatangoida) is an order comprising closely related families of organisms. It contains 4 families with 4 known species. This includes the family groups Brissidae, Loveniidae, Schizasteridae, and Spatangidae. It belongs to Echinoidea (Echinoidea).