Vertebrata Cuvier, 1812 - vertebrates Gnathostomata Teleostomi Tetrapoda Goodrich, 1930 Amniota Haeckel, 1866 - amniotes Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Theria of Metatherian-Eutherian grade Infraclass Eutheria Gill, 1872 Order Carnivora Bowdich, 1821 - carnivores Superfamily Otarioidea Gray, 1825 Family †Enaliarctidae Mitchell & Tedford, 1973