Reptile Orders

The taxonomic orders of the reptiles, the scaled, ectothermic amniotes outside the mammal and bird lineages: the crocodilians (Crocodilia), the turtles and tortoises (Testudines), the lizards and snakes (Squamata), and the tuatara's own order (Rhynchocephalia), the sole living representative of an otherwise extinct lineage. Covers every order-rank taxon entity in this atlas identified by its own sourced description as belonging to one of these four living reptilian orders under the standard herpetological classification ITIS and the Catalogue of Life both follow. A small subcategory by real-world count, since living reptiles fall into only four orders; this is a property of the group itself, not a curated shortcut, and every described living reptile order in this atlas belongs here.