Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801 Class Reptilia Linnaeus, 1758 - reptiles Order †Placodontia Owen, 1859, incertae sedis Family †Cyamodontidae Nopcsa, 1923 1 Genus †Placochelys Jaekel, 1902