Sphenaster Smith et al., 1999 Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Animalia phylum Echinodermata class Echinoidea order Spatangoida family Aeropidae genus Sphenaster Name Homonyms Sphenaster J.A.Wilcoxon, 1970 Sphenaster Jeffery, 1999 Sphenaster Smith et al., 1999