Species:
Echinocardium cordatum >
Genus:
Echinocardium >
Subfamily:
Echinocardiinae >
Family:
Loveniidae >
Superfamily:
Spatangoidea >
Suborder:
Brissidina >
Order:
Spatangoida >
Subterclass:
Atelostomata >
Infraclass:
Irregularia >
Subclass:
Euechinoidea >
Class:
Echinoidea >
Subphylum:
Echinozoa >
Phylum:
Echinodermata >
Kingdom:
Animalia >
Unranked:
Biota >