Class Mammalia Linnaeus, 1758 - mammals
Count: [f†f] 27o;160f; ‡7f [21 Jun 2022]
   Subclass Prototheria Gill, 1872 [monotypic] - monotremes
  Count: [f] 1o;2f [7 Jun 2022]
     Order Monotremata Bonaparte, 1837 - monotremes
    Count: [f] 2f [7 Jun 2022]
       1 Family Tachyglossidae Gill, 1872 - spiny anteaters
      Count: -
       2 Family Ornithorhynchidae Gray, 1825 - platypuses
      Count: -