Class Mammalia Linnaeus, 1758 - mammals
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   Subclass Theria Parker & Haswell, 1897
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     Infraclass Tribosphenida McKenna, 1975 see Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001
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       Supercohort Eutheria Gill, 1872 see Infraclass Eutheria Gill, 1872
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         Cohort Edentata Cuvier, 1798
        Count: -