1. Dental topography and diets of platyrrhine primates
- Author
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Mikael Fortelius, Carrie Healy, Aleksis Karme, Peter S. Ungar, Mark F. Teaford, Department of Geosciences and Geography, and Evolutionary Palaeontology group
- Subjects
0106 biological sciences ,Cognitive science ,060101 anthropology ,Ecology ,media_common.quotation_subject ,Context (language use) ,06 humanities and the arts ,Biology ,010603 evolutionary biology ,01 natural sciences ,1181 Ecology, evolutionary biology ,0601 history and archaeology ,General Agricultural and Biological Sciences ,Function (engineering) ,media_common - Abstract
More than half a century ago, Percy Butler touted the importance of analyzing teeth to understand their function in an evolutionary context. There have been many advances in the study of dental functional morphology since that time. Here we review the various approaches to characterizing and comparing occlusal form that have been developed, especially dental topographic analysis. We also report on a new study of dental topography of platyrrhine primates (n = 341 individuals representing 16 species) with known differences in both dietary preferences and other food items eaten. Results indicate frugivores, gummivores, folivores, and seed eaters each have a unique combination of slope, relief, angularity, sharpness, and occlusal orientation patch size and count values. Likewise, among frugivores, those that supplement their diets with hard objects, insects, leaves, and seeds, also each have a distinctive suite of topographic features. We conclude that both primary and secondary diet choices select for occlusal form, and that functional morphology more reflects the types of foods and mechanical challenges they pose rather than the frequencies in which they are eaten.
- Published
- 2016
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