How Long Ago Did Sahelanthropus Tchadensis, the Presumed Ancestor of All

Question

How long ago did Sahelanthropus tchadensis, the presumed ancestor of all hominins, appear?
A) 6,000 years ago
B) 50,000 years ago
C) 1 million years ago
D) over 6 million years ago

Accepted Answer

Sahelanthropus tchadensis is believed to have lived over 6 million years ago, making it one of the oldest known hominins and a presumed ancestor of humans.