The O.H.7 (Olduvai Gorge, Tanzania) parietal fragments and their reconstruction: a reply to Wolpoff.

Given Wolpoff's (1981) dimensions for lambda-bregma and biparietal breadth, it was possible to reconstruct a new version of the O.H.7 hominid parietals. The constraints of the anatomical features of the original parietal fragments plus Wolpoff's constraints from his own reconstruction, permit testing his claims as a hypothesis. By comparing the resulting distortion of Wolpoff's proposed reconstruction with that of the original reconstruction by Tobias, it is clear that the latter's is far superior to the former's, and that the cranial capacity of O.H.7 of roughly 700 ml is most probable.