ectothermic vertebrates Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   Class Reptilia Linnaeus, 1758 - reptiles
     Order Squamata Oppel, 1811
       1 Suborder Iguania Cope, 1864
       2 Suborder Lacertilia Owen, 1842
       3 Suborder Anguimorpha Fürbringer, 1900
       4 Suborder Amphisbaenia Gray, 1844 - amphisbaenians