Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anenomes) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (flatworms, echinoderms, etc. ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders Crocodilia - Crocodilians Rhynchocephalia - Tuataras Squamata Suborder Sauria- Lizards Suborder Serpentes - Snakes Suborder Amphisbaenia - Worm lizards Testudines - Turtles Superorder Dinosauria Saurischia Ornithischia Reptiles are tetrapods, and also are amniotes, animals whose embryos are surrounded by an amniotic membrane. ... Suborders Amphisbaenia - Worm lizards Sauria- Lizards Serpentes - Snakes Squamata (scaled reptiles) is the largest recent order of reptiles, including lizards and snakes. ... 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 many—see text Skinks are reptilians belonging to suborder Sauria, and there to the superfamily Scincomorpha, the same as the true lizards. ...
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