The Taung endocast: a reply to Holloway

American Journal of Physical Anthropology
D Falk

Abstract

Indices of rostrality (ir, ir') are developed to assess the extent to which the medial end of the lunate sulcus (L) is rostrally positioned in photographs and figures of lateral views of primate brains and endocasts, and indices are determined for chimpanzees, SK 1585 and the Taung endocast. Ir quantifies the extent of rostrality as it has traditionally been viewed (in A-P projections) while ir' takes dorsal curvature into account. The ir of the feature that I have identified as the lunate sulcus of Taung is within one standard deviation of the mean ir for Pan and its ir' is within 1.5 standard deviations from the mean ir' for Pan. Both findings are compatible with my earlier statement that the medial end of the lunate sulcus of the Taung endocast is in a pongid-like position. Use of stereoplotting to transfer the position of L from chimpanzee endocasts and brains to australopithecine endocasts is critically assessed: Holloway stereoplotted five chimpanzee brains and then transferred their mean coordinates that describe the lunate sulcus to the Taung endocast. If stereoplotting successfully transfers the extent to which L is rostrally located, one would expect the mean L of Pan and its transferred counterpart in Taung to have i...Continue Reading

References

Jan 1, 1975·Brain, Behavior and Evolution·R E Passingham
Nov 1, 1975·Journal of Neurosurgery·S Sato, J Suzuki
Jul 1, 1974·Scientific American·R L Holloway
Nov 1, 1980·American Journal of Physical Anthropology·D Falk

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Citations

Sep 1, 1992·Cognition·M C Corballis
Jan 21, 2015·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Jean-Jacques HublinPhilipp Gunz
Jul 13, 2006·The Anatomical Record. Part A, Discoveries in Molecular, Cellular, and Evolutionary Biology·John S AllenHanna Damasio
Jan 1, 1991·American Journal of Physical Anthropology·R L Holloway
Nov 1, 1989·American Journal of Physical Anthropology·D Falk
Jul 1, 1984·American Journal of Physical Anthropology·R L Holloway
Aug 1, 1985·American Journal of Physical Anthropology·D Falk
Jul 11, 2019·Attention, Perception & Psychophysics·Jason Flindall, Claudia L R Gonzalez
Dec 26, 2018·Journal of Human Evolution·Amélie BeaudetDominic Stratford

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