Prothylacynus patagonicus Ameghino, 1891 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia family Borhyaenidae genus Prothylacynus species Prothylacynus patagonicus Name Synonyms Agustylus carnifex Mercerat, 1891 Borhyaena excavata (Ameghino, 1894) Dynamictis excavata (Ameghino, 1894) Napodonictis thylacynoides Ameghino, 1894 Prothylacinus patagonicus Ameghino, 1891 Prothylacynus brachyrhynchus Ameghino, 1894 Homonyms Prothylacynus patagonicus Ameghino, 1891