Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Class Reptilia Linnaeus, 1758 - reptiles Subclass Lepidosauria Duméril & Bibron, 1839 Order Squamata Oppel, 1811 Suborder Amphisbaenia Gray, 1844 - amphisbaenians Family Trogonophidae Vanzolini, 1951 - shorthead worm lizards see Family Trogonophiidae Vanzolini, 1951