ArticleAmerican journal of biological anthropology2025
Enamel Prism Angle Variation and Hard-Object Feeding in Cercopithecoids With Known Diets.
Article in American journal of biological anthropology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Dietary Adaptation in Paranthropus robustus Postcanine Teeth.American journal of biological anthropology · 2026Article
- The Meaning of Mangabey Molars (And Premolars).Evolutionary anthropology · 2026Review
- Enamel Prism Angle Variation and Hard-Object Feeding in Cercopithecoids With Known Diets.American journal of biological anthropology · 2025Article
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4 authors.
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Abstract
objectivesTo examine relationships between enamel prism angles relative to wear surfaces and dietary hardness in three cercopithecoid genera. We hypothesized that the hard-object feeding (durophagous) Cercocebus atys and Lophocebus albigena would have higher prism angles, making their enamel in this region stiffer and stronger in this region, than the soft-object feeding Cercopithecus. We further investigated whether the habitually durophagous Cercocebus atys and the fallback hard-object feeding Lophocebus albigena had similarly high prism angles. MATERIALS AND
methodsMolars were sectioned using standard protocols and imaged with a Motic BA 310 Microscope with a Moticam camera. ImageJ FIJI was used to measure prism and wear angles. Measurements were made on 13 Cercocebus atys, 13 Lophocebus albigena, and 11 Cercopithecus molars, though sample sizes varied for different comparisons.
resultsRepeated measures regressions of upper functional and non-functional cusps were used to test for the effects of tooth, genus, tooth-genus interaction, and wear angle on prism angle. Genus and wear angle were found to be statistically significant predictors. Pairwise comparisons revealed significantly higher prism angles in Cercocebus atys vs. both Lophocebus albigena and Cercopithecus. There was no significant difference between Lophocebus albigena and Cercopithecus in prism angles. DISCUSSION: Our finding that the prism angles of a fallback hard-object feeder (Lophocebus albigena) are more similar to those of a soft-object feeder (Cercopithecus) than to a habitual hard-object feeder (Cercocebus atys) suggests that the correspondence between durophagy and enamel microstructure is not straightforward, complicating our ability to infer durophagy in the fossil record.
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