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Technical note: The midline and endocranial volume of the Taung endocast

✍ Scribed by Ralph L. Holloway; Douglas C. Broadfield


Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
309 KB
Volume
146
Category
Article
ISSN
0002-9483

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✦ Synopsis


Abstract

The Taung endocast is one of the best‐preserved and most important known in paleoanthropology. Although the endocast is undistorted and preserves distinctive landmarks, Taung has proved a difficult endocast, because it is only about 60% complete. To reconstruct Taung it is necessary to first use the available anatomical landmarks to define the midline of the endocast. It is only with a proper description of the midline that it is possible to reconstruct the endocast and obtain an accurate measurement of Taung's endocranial volume. Holloway (Science 168 (1970) 966–968) determined a conservative estimate for Taung of 404 ml. More recently this estimate has been revised downward by Falk and Clarke (Am J Phys Anthropol 134 (2007) 529–534) to 382 ml, giving Taung the smallest endocast for A. africanus. Certain challenges exist with the reconstruction of any endocast, particularly a hemi‐endocast such as Taung. A virtual reconstruction of Taung must assume perfect symmetry, a feature called into question here in Taung's most recent reconstruction by Falk and Clarke (2007). Holloway's (1970) reconstruction of Taung provides a guidepost for a conservative approach to endocast reconstructions, and the most reliable measurement of Taung's true endocranial volume. Am J Phys Anthropol, 2011. Β© 2011 Wiley‐Liss, Inc.


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