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Bulging Brow - Fossil Skull Example

 The Neandertal had several physical traits which allow researchers to identify their fossil remains beyond doubt. One main feature is the bulging brow and a sloping rear to the skull. 
Fossil skull images.
Frontal and Side Views of Neandertal Skull
Herman Schaaffhausen drawing.

Reconstruction by Herman Schaaffhausen, 1888

Precancel type I from Fossil, Oregon.