Oldfieldthomasia plicata Ameghino, 1904 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia family Oldfieldthomasiidae genus Oldfieldthomasia species Oldfieldthomasia debilitata Name Homonyms Oldfieldthomasia plicata Ameghino, 1904