Class Mammalia Linnaeus, 1758 - mammals †"Symmetrodontans" Simpson, 1925, incertae sedis see Infraclass Symmetrodonta Simpson, 1925 Family †Kuehneotheriidae Kermack, Kermack & Mussett, 1968 Genus †Kotatherium Datta, 1981 [monotypic] 1 †Kotatherium haldanei Datta, 1981