·Biota
·Eukaryota
·Animalia
·Echinodermata
·Echinozoa
·Echinoidea
·Euechinoidea
·Irregularia
·Atelostomata
·Spatangoida
·Paleopneustina
·Prenasteridae
·Agassizia
·Agassizia (Anisaster)
·Agassizia (Anisaster) wilmingtonica
SSAgassizia (Anisaster) wilmingtonica inflataCurrent