Class Reptilia Linnaeus, 1758 - reptiles
Count: [*†*] 4o;47f; †14o;194f [5 Jan 2017]
   Subclass Lepidosauria Duméril & Bibron, 1839
  Count: [*†*] 2o;35f; †1o;16f [4 Jan 2017]
     Order †Eosuchia Broom, 1914 see Clade Eosuchia Broom 1914 [Laurin 1991]
    Count: [†*] †8f [4 Jan 2017]
       Suborder †Protorosaurida
      Count: [†*] †3f [4 Jan 2017]
         1 Family †Younginidae Broom, 1914
        Count: -
         2 Family †Tanystropheidae Gervais, 1859
        Count: -
         3 Family †Protorosauridae Cope, 1871
        Count: -