Assertion: human's skull | /r/IsA | sahelanthropus
Facets:
Source sentences:
text: The skull is about 7 million years old, and has been classified as Sahelanthropus tchadensis.
text: The skull is about 7 million years old, and has been classified as Sahelanthropus tchadensis.
text: The skull is about 7 million years old, and has been classified as Sahelanthropus tchadensis.