Class Mammalia Linnaeus, 1758 - mammals Subclass †Allotheria Marsh, 1880 Order †Multituberculata Cope, 1884 Suborder †"Plagiaulacida" Ameghino, 1889 [paraphyletic] †Allodontid line Family †Allodontidae Marsh, 1889 Genus †Psalodon Simpson, 1926 ?†Psalodon marshi Simpson, 1929