Summary 2

Rhynchocephalia is an order of lizard-like reptiles that includes only one living species of tuatara, which in turn has two subspecies (Sphenodon punctatus punctatus and Sphenodon punctatus guntheri), which only inhabit parts of New Zealand. Despite its current lack of diversity, the Rhynchocephalia at one time included a wide array of genera in several families and represents a lineage stretching back to the Mesozoic Era. Many of the niches occupied by lizards today were the

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  1. (c) Gathadair, some rights reserved (CC BY-NC), http://www.flickr.com/photos/52479177@N00/114515071
  2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Rhynchocephalia

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