Table 3.

Measures of basi-occipital length.

taxon/specimenbasi-occip. length (mm)basi-occip. lg/biorbital br * 100
Australopithecus afarensis
 A.L. 444-22021
 A.L. 822-12223
 A.L. 417-11924
Australopithecus africanus
 Sts. 52529
 MLD 37/3821
 Stw 18717
Australopithecus boisei
 OH 52020
 KNM-ER 4062524
 KNM-ER 40721
Australopithecus aethiopicus
 KNM-WT 17 0002527
Homo sapiens (n = 10)2122
Pan troglodytes male (n = 10)2829
Pan troglodytes female (n = 10)2628
Gorilla gorilla male (n = 10)3733
Gorilla gorilla female (n = 10)2930