Class Mammalia Linnaeus, 1758 - mammals Subclass †Allotheria Marsh, 1880 Order †Multituberculata Cope, 1884 Suborder †"Plagiaulacida" Ameghino, 1889 [paraphyletic] †Paulchoffatiid line Family †Pinheirodontidae Hahn & Hahn, 1999 Genus †Pinheirodonᵀ Hahn & Hahn, 1999 †Pinheirodon vastus Hahn & Hahn, 1999