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Period: to
Calandar Year
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Testudine branches off from Sauropsida with the Odontchelys
Late Triassic period of Mesozoic era.
Waters of East Asia
220mya -
Proganochelys in Western Europe
210 mya
Fossil Records -
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)
