Species:
Echinosigra (Echinosigra) phiale >
Subgenus:
Echinosigra (Echinosigra) >
Genus:
Echinosigra >
Family:
Pourtalesiidae >
Infraorder:
Urechinina >
Suborder:
Meridosternata >
Order:
Holasteroida >
Subterclass:
Atelostomata >
Infraclass:
Irregularia >
Subclass:
Euechinoidea >
Class:
Echinoidea >
Subphylum:
Echinozoa >
Phylum:
Echinodermata >
Kingdom:
Animalia >
Unranked:
Biota >