The modern sea turtles emerged from a common progenitor about 110 million years ago and offered rise to 4 families of sea turtles.
Sea turtles grew from land and freshwater turtles, that lived about 230 million years ago in the Cretaceous period.
Even though our current turtle species has varied over time.
Thus, progenitor about 110 million years ago and gave rise to 4 families of marine turtles.
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