{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T21:52:53Z","timestamp":1784238773851,"version":"3.55.0"},"reference-count":116,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T00:00:00Z","timestamp":1763424000000},"content-version":"vor","delay-in-days":17,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100005966","name":"Leakey Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100005966","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Biological Anthropology"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>External tooth root morphology has demonstrated utility in understanding the mechanical function of teeth including patterns of loading during mastication and the overall mechanical challenge of foods consumed. Yet, there is still a paucity of information regarding how signals of diet, apart from these patterns, might be reflected in root form. This study examines whether a cross\u2010section taken from the molar root cervix contains signals related to diet and masticatory function in extant catarrhine primates.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Micro\u2010CT scans of 11 genera of catarrhines were used to obtain 188 mandibular molars (M\n                      <jats:sub>1<\/jats:sub>\n                      , M\n                      <jats:sub>2<\/jats:sub>\n                      , and M\n                      <jats:sub>3<\/jats:sub>\n                      ) from the right side. A single slice taken from the cervical margin was used to generate cross\u2010sectional properties for analysis.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      OLS regression of dentin area on mandibular length provided evidence of a strong relationship (\n                      <jats:italic>r<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20090.90\u20130.93,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) and analysis of the residuals indicated significant differences for dietary category. Post hoc tests revealed that soft and hard object frugivores differ in relative dentin area across the molar row (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). Additionally, a ratio calculated from the second moments of area\n                      <jats:italic>I<\/jats:italic>\n                      <jats:sub>x<\/jats:sub>\n                      and\n                      <jats:italic>I<\/jats:italic>\n                      <jats:sub>y<\/jats:sub>\n                      describing the cross\u2010sectional dentin distribution showed that dentin allocation was also significantly associated with dietary category serving to distinguish hard object frugivores from all other groups.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The cervical root cross\u2010section contains information regarding both the mechanical function of a tooth as well as conveying some aspects of dietary specialization, particularly for frugivorous catarrhines. This region provides a more nuanced understanding of dental adaptation along the folivore\u2013frugivore continuum.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ajpa.70164","type":"journal-article","created":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T10:07:16Z","timestamp":1763460436000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Molar Cervical Root Cross\u2010Sectional Morphology and Diet in Extant Catarrhines"],"prefix":"10.1002","volume":"188","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9642-1832","authenticated-orcid":false,"given":"Zana R.","family":"Sims","sequence":"first","affiliation":[{"name":"Department of Ecology, Evolution &amp; Behavior University of Minnesota  Saint Paul Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,11,18]]},"reference":[{"key":"e_1_2_10_2_1","volume-title":"A Comparative Study of Tooth Root Morphology in the Great Apes, Modern Man and Early Hominids (PhD Thesis, University of London)","author":"Abbott S. 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