kingdom: Animalia >
phylum: Echinodermata >
subphylum: Echinozoa >
class: Echinoidea Schumacher, 1817 >
subclass: Euechinoidea Bronn, 1860 >
infraclass: Carinacea Kroh & Smith, 2010 >
subterclass: Echinacea Claus, 1876 >
order: Stomopneustoida Kroh & Smith, 2010 >