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Rhynchocephalia

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Rhynchocephalia

Order of primitive reptiles that lived in Triassic times. The tuatara is the only survivor of this ancient group.



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The reptile segment (59 pages) covers all four reptilian orders: Testudines (turtles and tortoises), Crocodilia, Rhynchocephalia (tuataras), and Squamata (amphisbaenians, lizards, snakes).
Its cousins in the reptilian order Rhynchocephalia all died out 139 million years ago.
 
 
 
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