Water Reptiles of the Past and Present

Name: Water Reptiles of the Past and Present
Author: Williston, Samuel Wendell

Williston, Samuel Wendell

Aquatic reptiles; Aquatic reptiles, Fossil

|       |        |    |    |     |   |      |         |       |        |      |
                 Pareiasauria···|·██████|        |    |    |     |   |      |         |       |        |      |
                 Microsauria    |       |        |    |    |     |   |      |         |       |        |      |
                   ██████████████████   |        |    |    |     |   |      |         |       |        |      |
    AMPHIBIANS                  |       |        |    |    |     |   |      |         |       |        |    Amphibians
    ==================================================================================================================
              Pleurodira········|       |     ████████████████████████████████████████████████████████████████████████
                                |       |        |    |    |     |   |      |         |       |        |      |Turtles
    CHELONIA  Cryptodira········|       |        |    |███████████████████████████████████████████████████████████████
                                |       |        |    |    |     |   |      |         |       |        |      |
              Trionychoidea·····|       |        |    |    |     |   █████████████████████████████████████████████████
                                |       |        |    |    |     |   |      |         |       |        | River Turtles
    SAUROPTERYGIA Nothosauria···|       |  █████ |    |    |     |   |      |         |       |        |      |
                                |       |        |    |    |     |   |      |         |       |        |      |
                  Plesiosauria··|       |  ██████████████████████████|      |         |       |        |      |
                                |       |        |    |    |     |   |      |         |       |        |      |
               Dromasauria      |  ████ |        |    |    |     |   |      |         |       |        |      |
                                |       |        |    |    |     |   |      |         |       |        |      |
               Dinocephalia     |  ████ |        |    |    |     |   |      |         |       |        |      |
                                |       |        |    |    |     |   |      |         |       |        |      |
    THERAPSIDA Anomodontia      |    ████████████|    |    |     |   |      |         |       |        |      |
                                |       |        |    |    |     |   |      |         |       |        |      |
               Therocephalia    |  ████ |        |    |    |     |   |      |         |       |        |      |
               Theriodontia     |       |  █████ |    |    |     |   |      |         |       |        |      |
                                |       |        |    |    |     |   |      |         |       |        |      |Mammals
    MAMMALS·····················|·      |      ██|::::|:██████:::|:███████████████████████████████████████████████████

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Water Reptiles of the Past and Present

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