Class Mammalia Linnaeus, 1758 - mammals
Count: [*†*] 1o; †19o;15f;16g
   Subclass Acrotheria Averianov & Lopatin, 2011
  Count: [*†*] 1o; †10o;13f;9g
     Infraclass †"Triconodonta" Osborn, 1888 [paraphyletic] see Order Triconodonta Osborn, 1888
    Count: [†*] †4o;7f;5g [27 Jun 2022]
       Order †"Phascolotheria" Ameghino, 1889 [paraphyletic]
      Count: [†*] †1f [29 Jun 2022]
         Family †Amphilestidae Osborn, 1888
        Count: -