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Cranial capacity evolution in Homo erectus and early Homo sapiens
Author(s) -
Leigh Steven R.
Publication year - 1992
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330870102
Subject(s) - homo erectus , homo sapiens , evolutionary biology , biology , human evolution , paleontology , geography , pleistocene , archaeology
This paper investigates patterns of cranial capacity evolution in Homo erectus , early Homo sapiens , and in regional subsamples of H. erectus . Specifically, models explaining evolution of cranial capacity in these taxa are evaluated with statistical techniques developed for the analysis of time series data. Regression estimates of rates of evolution in cranial capacity are also obtained. A non‐parametric test for trend suggests that cranial capacity in both H. erectus and early H. sapiens may increase significantly through time. Cranial capacity in an Asian subsample of H. erectus (comprised of Chinese and Indonesian specimens) increases significantly through time. Other sub‐samples of H. erectus (African, Chinese, and Indonesian) do not appear to increase significantly through time. Regression results generally corroborate results of the test for trend. Spatial and temporal variation may characterize evolution of cranial capacity in H. erectus . Different patterns of cranial capacity evolution may distinguish H. erectus from early H. sapiens .