Clade Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758
Status: extant
   1 †Phascolotherium bucklandi (Broderip, 1828)
  Distribution: Palearctic/British Isles; Period: Middle Jurassic (174.1 - 163.5 Ma); Status: fossil
   2.1 †Amphilestes broderipi orth. inval. see Amphilestes broderipii (Owen, 1845)
  Distribution: Palearctic/British Isles; Period: Middle Jurassic (174.1 - 163.5 Ma); Status: fossil
   2.2 Clade Trechnotheria McKenna 1975
  Status: extant