Neandertal incisor beveling

Journal of Human Evolution
P S UngarE Trinkaus

Abstract

In discussions of the Neandertals, there has been repeated emphasis on the accelerated rate of attrition and the frequent presence of labial beveling of their incisors. Interpretations of this dental attrition have related it to paramasticatory and dietary uses of their anterior teeth as well as to aspects of their facial morphology. In light of this, we examined the rate of beveling (the angle between the labial and incisal surfaces) of central incisors relative to tooth wear in samples of Neandertals, Inuits and Puebloan Amerindians. I1s show little change in the beveling angle with wear and no significant differences between the samples. I1s, however, exhibit a consistent pattern of increased beveling with dental attrition, progressing rapidly until the crown height approximates its labiolinguinal cervical diameter, and then proceeding at a slower rate. All three samples exhibit a similar pattern. However, the Neandertals have significantly greater beveling in more worn teeth than either recent human sample, and the Inuits have nonsignificantly increased beveling relative to the Puebloans in these more worn I1s. In this, it is the degree of development of beveling, not the pattern of beveling, which differentiates the Neande...Continue Reading

References

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Citations

Oct 9, 2013·Proceedings of the National Academy of Sciences of the United States of America·Ann MargvelashviliMarcia S Ponce de León
Dec 14, 2006·Proceedings of the National Academy of Sciences of the United States of America·Antonio RosasJavier Fortea
Sep 13, 2001·Proceedings of the National Academy of Sciences of the United States of America·S LebelG A Wagner
Dec 26, 2012·Journal of Human Evolution·Adeline Le CabecJean-Jacques Hublin
Aug 21, 2012·Evolutionary Anthropology·Peter S UngarJerome C Rose
Jul 14, 2010·American Journal of Physical Anthropology·Almudena EstalrrichMarco de la Rasilla
Mar 15, 2006·Journal of Human Evolution·K Y AngH T W Tan
Jul 6, 2002·Journal of Human Evolution·Seth D Dobson, Erik Trinkaus
Mar 15, 2000·Journal of Human Evolution·E TrinkausS Lauklin
Feb 27, 2016·American Journal of Physical Anthropology·Ann MargvelashviliMarcia S Ponce de León
Oct 23, 2016·American Journal of Physical Anthropology·Pier Francesco FabbriStefano Benazzi
Mar 3, 2017·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Julia C Boughner
Feb 24, 2000·American Journal of Physical Anthropology·Y Kaifu
Dec 11, 2003·American Journal of Physical Anthropology·Yousuke KaifuLindsay C Richards
Oct 24, 2018·American Journal of Physical Anthropology·Stefanie StelzerPhilipp Gunz
Feb 22, 2012·Journal of Human Evolution·Anna F ClementLeslie C Aiello
Nov 24, 2004·American Journal of Physical Anthropology·Carol F O'ConnorNathan E Holton

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