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Hard plant tissues do not contribute meaningfully to dental microwear: evolutionary implications.
van Casteren, Adam; Strait, David S; Swain, Michael V; Michael, Shaji; Thai, Lidia A; Philip, Swapna M; Saji, Sreeja; Al-Fadhalah, Khaled; Almusallam, Abdulwahab S; Shekeban, Ali; McGraw, W Scott; Kane, Erin E; Wright, Barth W; Lucas, Peter W.
Afiliación
  • van Casteren A; Department of Anthropology, Washington University in St. Louis, St. Louis, MO, 63130, USA. adam.vancasteren@gmail.com.
  • Strait DS; Department of Anthropology, Washington University in St. Louis, St. Louis, MO, 63130, USA.
  • Swain MV; Palaeo-Research Institute, University of Johannesburg, Auckland Park, Gauteng, South Africa.
  • Michael S; Department of Bioengineering, Don State Technical University, Rostov-on-Don, Russia.
  • Thai LA; Department of Bioclinical Sciences, Faculty of Dentistry, Kuwait University, P.O. Box 24923, Safat, 13110, Kuwait.
  • Philip SM; Department of Mechanical Engineering, College of Engineering and Petroleum, Kuwait University, P.O. Box 5969, Safat, 13060, Kuwait.
  • Saji S; Department of Bioclinical Sciences, Faculty of Dentistry, Kuwait University, P.O. Box 24923, Safat, 13110, Kuwait.
  • Al-Fadhalah K; Department of Bioclinical Sciences, Faculty of Dentistry, Kuwait University, P.O. Box 24923, Safat, 13110, Kuwait.
  • Almusallam AS; Department of Mechanical Engineering, College of Engineering and Petroleum, Kuwait University, P.O. Box 5969, Safat, 13060, Kuwait.
  • Shekeban A; Department of Chemical Engineering, College of Engineering and Petroleum, Kuwait University, P.O. Box 5969, Safat, 13060, Kuwait.
  • McGraw WS; Department of Mechanical Engineering, College of Engineering and Petroleum, Kuwait University, P.O. Box 5969, Safat, 13060, Kuwait.
  • Kane EE; Department of Anthropology, 4064 Smith Laboratory, The Ohio State University, 174 West 18th Ave., Columbus, OH, 43210-1106, USA.
  • Wright BW; Department of Anthropology, Boston University, 232 Bay State Rd, Boston, MA02215-1403, USA.
  • Lucas PW; College of Osteopathic Medicine, Kansas City University of Medicine and Biosciences, 1750 Independence Ave., Kansas City, MO, 64106, USA.
Sci Rep ; 10(1): 582, 2020 01 17.
Article en En | MEDLINE | ID: mdl-31953510
Reconstructing diet is critical to understanding hominin adaptations. Isotopic and functional morphological analyses of early hominins are compatible with consumption of hard foods, such as mechanically-protected seeds, but dental microwear analyses are not. The protective shells surrounding seeds are thought to induce complex enamel surface textures characterized by heavy pitting, but these are absent on the teeth of most early hominins. Here we report nanowear experiments showing that the hardest woody shells - the hardest tissues made by dicotyledonous plants - cause very minor damage to enamel but are themselves heavily abraded (worn) in the process. Thus, hard plant tissues do not regularly create pits on enamel surfaces despite high forces clearly being associated with their oral processing. We conclude that hard plant tissues barely influence microwear textures and the exploitation of seeds from graminoid plants such as grasses and sedges could have formed a critical element in the dietary ecology of hominins.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plantas / Diente / Hominidae / Dieta Límite: Animals Idioma: En Revista: Sci Rep Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plantas / Diente / Hominidae / Dieta Límite: Animals Idioma: En Revista: Sci Rep Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido