Ankylosphenodon pachyostosus Reynoso, 2000 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Sphenodontia family Sphenodontidae genus Ankylosphenodon species Ankylosphenodon pachyostosus Name Homonyms Ankylosphenodon pachyostosus Reynoso, 2000