The pattern of evolution in Pleistocene human brain size

From: Paleobiology | Date: April 1, 2003| Author: Wolpoff, Milford H; Lee, Sang-Hee | Copyright information

Abstract.-With a sample of 94 Pleistocene cranial capacities between the time period of 1.8 Ma and 50 Ka now known, we consider the evolution of cranial capacity in Homo, with the null hypothesis that the changes over time are a result of one process. We employ a new method that uses a resampling approach to address the limitations imposed on the methods of previous studies. To test the null hypothesis, we examine the distribution of changes in adjacent temporal samples and ask whether there ...

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