Ameiva griswoldi is a rare endangered species of lizard found only in Antigua and Barbuda, a small Caribbean island nation. Locally it is a called a ground lizard. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Subregnum Parazoa Porifera Subregnum Eumetazoa Placozoa Orthonectida Rhombozoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked) Acoelomorpha Myxozoa Superphylum Deuterostomia Chordata Hemichordata Echinodermata Chaetognatha Xenoturbellida Superphylum Ecdysozoa Kinorhyncha Loricifera Priapulida Nematoda Nematomorpha Onychophora Tardigrada Arthropoda Superphylum Platyzoa Platyhelminthes Gastrotricha Rotifera Acanthocephala Gnathostomulida Micrognathozoa Cycliophora Superphylum Lophotrochozoa Sipuncula Nemertea Phoronida Ectoprocta Bryozoa... {{{subdivision_ranks}}} See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ... Orders Procolophonia (extinct) Testudines Araeoscelidia (extinct) Avicephala (extinct) Younginiformes (extinct) Sauropterygia Ichthyosauria (extinct) Placodontia (extinct) Nothosauria (extinct) Plesiosauria (extinct) Sphenodontia Squamata Prolacertiformes (extinct) Archosauria Crurotarsi Order Aetosauria (extinct) Order Phytosauria(extinct) Order Rauisuchia (extinct) Order Crocodilia Ornithodira Pterosauria (extinct) Marasuchus (extinct) Dinosauria Order Saurischia Order Ornithischia(extinct) Reptiles are tetrapods... Suborders Lacertilia- Lizards Serpentes - Snakes Amphisbaenia - Worm lizards This article is about the Squamata order of reptiles. ... Groups Lepidosauromorpha Archosauromorpha Sauria is a clade of the reptilian family tree, that includes all living diapsids, as well as their common ancestor and all its extinct descendents, which date back to Permian times. ... Genera Ameiva Aspidoscelis Callopistes Cnemidophorus Crocodilurus Dicrodon Dracaena Kentropyx Teius Tupinambis Teiidae is a family of lizards, generally known as whiptails, that includes the parthenogenic Genuses Cnemidophorus and Aspidoscelis and the non-parthenogenic Tegus. ... Ameiva is a lizard genus which belongs to the family of Teiidae. ... In biology, binomial nomenclature is the formal method of naming species. ...