Tooth roots reveal relationship

The Graecopithecus had united tooth roots, and so, scientists believe that it was an early relative of modern man.

United

Scans of a Graecopithecus jawbone allow scientists to make out a tooth root outlines. They can clearly see that the Graecopithecus had partly united roots.

Separate

CT scans of a jawbone from a Sahelanthropus tchadensis reveal that the early species' tooth roots were completely separate.

ROM AN TOOTH F ELATIVE EARLY R N ERN MA OF MOD ROM TOOTH F S PITHECU OURANO NIENSIS MACEDO