Results 31 to 40 of about 613,436 (216)

Dietary ecology of Smilodon across time and space: Additional perspectives from Smilodon gracilis and Smilodon fatalis in Florida. [PDF]

Anat Rec (Hoboken)
Dental microwear texture analysis of Smilodon samples from Florida's Pleistocene reveals moderate carcass utilization (like modern African lions) across space and time, with more subtle dietary shifts in response to fluctuating climates. Abstract Smilodon, the iconic saber‐toothed cat, was a Pleistocene apex predator comprised of three morphologically ...
Pardo-Judd J, DeSantis L.
europepmc   +2 more sources

Enamel Prism Angle Variation and Hard-Object Feeding in Cercopithecoids With Known Diets. [PDF]

Am J Biol Anthropol
Left: Cercocebus atys specimen 16–9 third molar showing Phase II enamel prism angle (angle between prism path and wear facet) and wear angle (angle between wear facet and enamel dentin junction (EDJ)). Scatterplot of prism vs. wear angles for the Phase II wear facet. Note the higher angles for Cercocebus.
Scheinblum J, McGraw WS, Gurian K, Guatelli-Steinberg D.   +3 more
europepmc   +2 more sources

Non-Carious Cervical Lesions in Wild Primates: Implications for Understanding Toothpick Grooves and Abfraction Lesions. [PDF]

Am J Biol Anthropol
ABSTRACT Objectives In clinical settings, non‐carious cervical lesions (NCCLs) are often linked to abrasion, erosion, abfraction, or a combination of these factors. In archaeological and paleontological remains, the most common NCCL is the “toothpick groove,” yet little is known about the occurrence of these and other NCCLs in wild non‐human primates ...
Towle I, Krueger KL, Hirata K, Kubo MO, Hara AT, Irish JD, Loch C, Borths MR, Fiorenza L.   +8 more
europepmc   +2 more sources

The dental microwear texture of wild boars from Japan reflects inter- and intra-populational feeding preferences

Frontiers in Ecology and Evolution, 2022
Dental microwear texture analysis (DMTA) is rapidly expanding for the dietary estimation of extinct animals. There has been an extensive accumulation of microwear texture data from herbivorous mammals, especially for ruminant artiodactyls, but suids are ...
Kohga Miyamoto, Mugino O. Kubo, Yasushi Yokohata   +2 more
doaj   +2 more sources

Dental topography and microwear texture in Sapajus apella

Biosurface and Biotribology, 2017
Dental microwear texture pattern has been associated with aspects of diet for a broad range of mammalian taxa. The basic idea is that soft, tough foods are sheared with a steeper angle of approach between opposing occlusal surfaces, whereas hard, brittle
Peter S. Ungar, Claire L. Hartgrove, Alexa N. Wimberly, Mark F. Teaford   +3 more
doaj   +2 more sources

Diet-related buccal dental microwear patterns in Central African Pygmy foragers and Bantu-speaking farmer and pastoralist populations. [PDF]

PLoS ONE, 2013
Pygmy hunter-gatherers from Central Africa have shared a network of socioeconomic interactions with non-Pygmy Bantu speakers since agropastoral lifestyle spread across sub-Saharan Africa.
Alejandro Romero, Fernando V Ramírez-Rozzi, Joaquín De Juan, Alejandro Pérez-Pérez   +3 more
doaj   +2 more sources

MicroWeaR: A new R package for dental microwear analysis. [PDF]

Ecol Evol, 2018
AbstractMastication of dietary items with different mechanical properties leaves distinctive microscopic marks on the surface of tooth enamel. The inspection of such marks (dental microwear analysis) is informative about the dietary habitus in fossil as well as in modern species. Dental microwear analysis relies on the morphology, abundance, direction,
Strani F, Profico A, Manzi G, Pushkina D, Raia P, Sardella R, DeMiguel D.   +6 more
europepmc   +13 more sources

Surface Replication, Fidelity and Data Loss in Traditional Dental Microwear and Dental Microwear Texture Analysis. [PDF]

Sci Rep, 2019
AbstractDental microwear studies often analyze casts rather than original surfaces, although the information loss associated with reproduction is rarely considered. To investigate the sensitivity of high magnification (150x) microwear analysis to common surface replication materials and methods, we compared areal surface texture parameters (ISO 25178-2)
Mihlbachler MC, Foy M, Beatty BL.
europepmc   +4 more sources

Trophic evolution in ornithopod dinosaurs revealed by dental wear [PDF]

Nature Communications
Ornithopod dinosaurs evolved numerous craniodental innovations related to herbivory. Nonetheless, the relationship between occlusion, tooth wear rate, and tooth replacement rate has been neglected. Here, we reconstruct tooth wear rates by measuring tooth
Attila Ősi, Paul M. Barrett, András Lajos Nagy, Imre Szenti, Lívia Vásárhelyi, János Magyar, Martin Segesdi, Zoltán Csiki-Sava, Gábor Botfalvai, Viviána Jó   +9 more
doaj   +2 more sources

Incorporating intraspecific variation into dental microwear texture analysis. [PDF]

J R Soc Interface, 2019
Dental microwear texture analysis (DMTA) quantifies microscopic scar or wear patterns left on teeth by different foods or extraneous ingested items such as grit. It can be a powerful tool for deducing the diets of extinct mammals. Here we investigate how intraspecific variation in the dental microwear of macropodids (kangaroos and their close relatives)
Arman SD, Prowse TAA, Couzens AMC, Ungar PS, Prideaux GJ.   +4 more
europepmc   +5 more sources