Sahelanthropus

Sahelanthropus tchadensis is an extinct hominine species that is dated to about 7 million years ago, possibly very close to the time of the chimpanzee–human divergence. It is unclear whether it can be regarded as a member of the Hominini tribe. Few specimens are known, other than the partial skull nicknamed Toumaï ("hope of life").

• http://en.wikipedia.org/wiki/Sahelanthropus
• Brunet et al., 2002, A new hominid from the Upper Miocene of Chad, Central Africa, Nature. v. 418, 145-151.