Scientific American
Scientific American: Oldest Member of the Human Family
This article, published by Scientific American (July 11, 2002), highlights the discovery of a nearly complete skull of the oldest and most primitive member of the human family known yet. This fossil, found in central Africa, contains a...
Wikimedia
Wikipedia: Sahelanthropus
An encyclopedia article on the oldest known hominid discusses the features of the fossils that were found, the region in which they were found, and what this means for human evolution.