Crocodylia: Predatory reptiles like the saltwater crocodile are part of this group, which also includes alligators and caimans.; Rhynchocephalia: Found only in New Zealand, tuataras are the last surviving members of a lineage closely related to lizards.; Squamata: This group includes many lizards and all snake species.Examples include crested geckos, Komodo dragons and hognose snakes. More @Wikipedia
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