Assertion: cheetah's ancestor | /r/HasProperty | traced to the miocene era
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Source sentences:
text: Cheetah is one of the oldest of the big cat species, with ancestors that can be traced back more than five million years to the Miocene era.
text: Here is what conservationist Laurie Marker says (Down to Earth): “The cheetah is one of the oldest of the big cat species and their ancestors can be traced back more than five million years to the Miocene era.