Species:
Ova canalifera >
Genus:
Ova >
Family:
Schizasteridae >
Suborder:
Paleopneustina >
Order:
Spatangoida >
Subterclass:
Atelostomata >
Infraclass:
Irregularia >
Subclass:
Euechinoidea >
Class:
Echinoidea >
Subphylum:
Echinozoa >
Phylum:
Echinodermata >
Kingdom:
Animalia >
Unranked:
Biota >