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Am J Phys Anthropol. 1989 Nov;80(3):335-9.

Ape-like endocast of "ape-man" Taung.

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1
Department of Anthropology, SUNY, Albany 12222.

Abstract

I have identified and illustrated a spherical "dimple" or "depression" on the Taung endocast as indicating the most likely position of the medial end of the lunate sulcus but have not drawn an actual lunate sulcus on Taung because one is not visible. In a recent paper, R. L. Holloway (Am. J. Phys. Anthropol. 77:27-33, 1988) drew a lunate sulcus on his copy of the Taung endocast, incorrectly attributed this sulcus to me, and used it to obtain a ratio of 0.254 to describe "Falk's" position of the lunate sulcus. My published ratio of 0.242 for Taung (Falk: Am. J. Phys. Anthropol. 67:313-315, 1985a) was not considered, although the focus of Holloway's paper was my assessment of the position of the lunate sulcus. Holloway also excluded published ratios for a chimpanzee in my collection from his statistical analysis but, even so, my published ratio for Taung is still only 1.5 standard deviations from his chimpanzee mean. If my chimpanzee brain is included in the sample, the ratio for Taung is 1.2 standard deviations from the mean. Furthermore, one of Holloway's own chimpanzees (B60-7) has a ratio of 0.241, just 0.001 below my ratio for Taung. There is no sulcus where Holloway has drawn one on Taung, his "F(LS)" is not mine, his 2 mm error is not mine, and the correct ratio for my measurement of Taung is the one that I published, not the one that Holloway attributes to me. Assessment of Holloway's chimpanzee data supports my claim that the dimple on the Taung endocast is within the chimpanzee range for the medial end of the lunate sulcus.

PMID:
2511763
DOI:
10.1002/ajpa.1330800307
[Indexed for MEDLINE]
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