WHOLE VOL. SKELETAL REMAINS OF EARLY MAN HRDLICKA 259 



whole region was carried more forward than in more recent skulls, 

 giving greater facial prognathism (see measurements). This was due 

 plainly to the large development of the dental arches, teeth, and the 

 jaws. The upper dental arch and palate are very large. The palate 

 is U-shaped and of about medium depth ; there is no torus. 



Fig. 25.— Upper and lower dental arches of the La Chapelle skull, as 

 reconstructed by Boule. 



The teeth. — Of the teeth there remain only a left upper and left 

 lower premolar, and both of them much worn. The lower premolar, 

 with but a remnant of the enamel, shows an opening of the pulp 

 cavity, and a very oblique wear sloping toward the lingual border. 

 There is no mark of decay and the teeth were lost most probably 



