Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801
   Class Reptilia Linnaeus, 1758 - reptiles
     Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
       Order †Nothosauria Baur, 1889 - nothosaurs see Suborder Nothosauria Baur, 1889
         Family †Nothosauridae Baur, 1889
           Genus †Ceresiosaurus Peyer, 1931
           Genus †Lariosaurus Curioni, 1847
           Genus †Nothosaurus Münster, 1834