Traits

Prognathism

 Degree of projection of mid to lower facial region (around maxilla)

Significant projection, Moderate projection, Mild projection, No projection

Size of Browridges (postorbital tori)

Bony protuberance above the eyes; thickness and protrusion

Significant, moderate, mild, none

Postorbital Constriction

Degree of ‘pinching in’ of cranium behind orbits

Significant, moderate, mild, none

Forehead

Sloping, vertical

Brain Size

Cranial Shape

Elongated length of cranium relative to width (e.g. oval, American football shaped) versus wider width relative to length (e.g. round, soccer ball shaped)

Elongated, globular

Occipital Bone

Angled, rounded

Browridge Shape

Continuous ‘unibrow’ bone with thickening in center (bar-like) versus brow ridges separated in the center by a depression (arching)

Bar-like, arching, none

Sagittal Keel

Thickening of the cranial bones along the midline of the skull

Present, absent