Oldfieldthomasia cuneata Ameghino, 1901 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia family Oldfieldthomasiidae genus Oldfieldthomasia species Oldfieldthomasia debilitata Name Homonyms Oldfieldthomasia cuneata Ameghino, 1901