Evolution of the dentition in prehistoric Ohio Valley Native Americans: II. Morphology of the deciduous dentition

American Journal of Physical Anthropology
P W Sciulli

Abstract

In order to evaluate the microevolutionary dynamics of morphological features of the deciduous dentition, I collected data on the variation of 57 features (33 crown and 24 root) from prehistoric Ohio Valley populations. I sampled a total of 370 individuals from 26 populations representing a lineage that inhabited the middle and upper Ohio valley region from approximately 3000 to 350 BP. Evolutionary changes in the frequencies of morphological features of the deciduous teeth in this lineage were limited. Over 80% of the features show no significant differences among the populations. The relatively few features that show consistent differences separate pre- and postmaize agricultural populations. I discuss explanations for this change in terms of selection differences or gene flow. The general pattern of morphological trait expression in the deciduous teeth of this Ohio Valley lineage corresponds to what has been termed the Mongoloid dental complex (sinodonty in the permanent teeth). I suggest additional features that, with further study, may be added to this morphological complex.

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Citations

Oct 28, 2015·Proceedings of the National Academy of Sciences of the United States of America·Justin C TackneyDennis H O'Rourke
Nov 12, 2014·Proceedings of the National Academy of Sciences of the United States of America·Ben A PotterHolly J McKinney
Sep 4, 2015·American Journal of Physical Anthropology·Shara E BaileyJ-J Hublin
Nov 11, 2009·American Journal of Physical Anthropology·Carolina PaschettaRolando González-José
Apr 30, 2015·American Journal of Physical Anthropology·Kathleen S Paul, Christopher M Stojanowski
May 19, 2011·American Journal of Physical Anthropology·Marin A Pilloud, Clark Spencer Larsen
Nov 18, 2009·American Journal of Human Biology : the Official Journal of the Human Biology Council·Joel D Irish
May 17, 2005·American Journal of Physical Anthropology·Edward F Harris, Loren R Lease
Feb 20, 2020·American Journal of Physical Anthropology·Kathleen S PaulGrant C Townsend
Jun 20, 2017·American Journal of Physical Anthropology·Kathleen S Paul, Christopher M Stojanowski
Apr 11, 2020·American Journal of Physical Anthropology·Alla A MovsesianHasmik G Simonyan
Jun 7, 2016·American Journal of Physical Anthropology·Paul W Sciulli, Robert A Cook
Feb 14, 2007·American Journal of Physical Anthropology·H J H Edgar, L R Lease
Dec 1, 2011·International Journal of Paleopathology·Maria Ostendorf Smith, Marissa C Wojcinski

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