Testudinia Phylogeny

By kgraham1
  • Period: to

    Calandar Year

  • Testudine branches off from Sauropsida with the Odontchelys

    Testudine branches off from Sauropsida with the Odontchelys

    Late Triassic period of Mesozoic era.
    Waters of East Asia
    220mya
  • Proganochelys in Western Europe

    Proganochelys in Western Europe

    210 mya
    Fossil Records
  • Pleurodira and Cryptodira Suborders are established

    Pleurodira and Cryptodira Suborders are established

    157 mya
    Pleurodira- Side-nick turtles
    Cyptodira- Brings the head straight back into the shell
    Giant turtles such as the Colossochelys arose. (pictured)