Pentacrinites fossilis Blumenbach, 1804 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Echinodermata class Crinoidea order Isocrinida family Pentacrinitidae genus Pentacrinites species Pentacrinites fossilis Name Synonyms Extracrinus briareus (Miller, 1821) Pentacrinites briareus (Miller, 1821) Pentacrinites britannicus von Schlotheim, 1813 Homonyms Pentacrinites fossilis Blumenbach, 1804