Class Reptilia Linnaeus, 1758 - reptiles
Count: [*†*] 4o;47f; †14o;194f [5 Jan 2017]
   Subclass †Synapsida Osborn, 1903 - synapsids see Class Synapsida Osborn, 1903
  Count: [†*] †3o;39f [5 Jan 2017]
     ?Order †Mesosauria Seeley, 1892 [monotypic]
    Count: [†*] †1f [5 Jan 2017]
       1 Family †Mesosauridae Baur, 1889 - mesosaurs
      Count: -