Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801 Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Infraclass †Trituberculata Order †Pantotheria (Marsh, 1880) see Order Eupantotheria Kermack & Mussett, 1958 1 Family †Dryolestidae Marsh, 1879