Assertion: cetacean's ancestor | /r/HasProperty | denebola brachycephala
Facets:
value: from the late miocene
type: TEMPORAL
Source sentences:
text: The earliest known ancestor of arctic whales is Denebola brachycephala from the late Miocene around 9–10 million years ago.
text: The earliest known ancestor of arctic whales is Denebola brachycephala from the late Miocene around 9–10 million years ago.