Assertion: cetacean's ancestor | /r/HasProperty | archaeoceti
Facets:
Source sentences:
text: The ancient and extinct ancestors of modern whales (Archaeoceti) lived 53 to 45 million years ago.
text: The ancient and extinct ancestors of modern whales (Archaeoceti) lived 53 to 45 million years ago.
text: The ancient and extinct ancestors of modern whales (Archaeoceti) lived 53 to 45 million years ago.