Eryops megacephalus Cope, 1877 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Amphibia family Eryopidae genus Eryops species Eryops megacephalus Name Synonyms Anisodexis imbricarius Cope, 1882 Clepsydrops gigas (Cope, 1878) Dimetrodon gigas (Cope, 1878) Eryops willistoni Moodie, 1911 Luperosaurus gigas (Cope, 1878) Rhachitomus valens Cope, 1878 Homonyms Eryops megacephalus Cope, 1877