Results 51 to 60 of about 678 (161)

Dental microwear texture as a proxy for diet in xenarthrans [PDF]

Journal of Mammalogy, 2013
Abstract Most dental microwear texture studies to date have focused on enamel surfaces. However, for xenarthran microwear we must, in effect, “reinvent the wheel,” because adult xenarthrans lack enamel. Dentin is softer than enamel and may record microwear differently.
Ryan J. Haupt, Larisa R. G. DeSantis, Jeremy L. Green, Peter S. Ungar   +3 more
openaire   +1 more source

Tooth eruption status and bite force determine dental microwear texture gradients in albino rats (Rattus norvegicus forma domestica)

The Anatomical Record, Volume 309, Issue 9, Page 2411-2423, September 2026.
Abstract Dental microwear texture analysis (DMTA) is widely applied for inferring diet in vertebrates. Besides diet and ingesta properties, factors like wear stage and bite force may affect microwear formation, potentially leading to tooth position‐specific microwear patterns.
Daniela E. Winkler, Isabelle Bernetière, Christine Böhmer   +2 more
wiley   +1 more source

Simulating taphonomic processes on teeth: The impact of sediment pressure and thermal alteration on dental microwear

Quaternary Science Advances
Dietary reconstructions based on dental microwear methodologies may be limited due to the various taphonomic processes that affect the formation of archaeological deposits. These limitations are primarily affected by two issues: 1) taphonomic alterations
Cristian Micó, Ruth Blasco, Florent Rivals   +2 more
doaj   +1 more source

Microwear textures associated with experimental near-natural diets suggest that seeds and hard insect body parts cause high enamel surface complexity in small mammals

Frontiers in Ecology and Evolution, 2022
In mammals, complex dental microwear textures (DMT) representing differently sized and shaped enamel lesions overlaying each other have traditionally been associated with the seeds and kernels in frugivorous diets, as well as with sclerotized insect ...
Daniela E. Winkler, Daniela E. Winkler, Daniela E. Winkler, Marcus Clauss, Mugino O. Kubo, Ellen Schulz-Kornas, Ellen Schulz-Kornas, Thomas M. Kaiser, Anja Tschudin, Annelies De Cuyper, Tai Kubo, Tai Kubo, Thomas Tütken   +12 more
doaj   +1 more source

In‐vitro puncture experiment using alligator teeth tracks the formation of dental microwear and its association with hardness of the diet

The Anatomical Record, Volume 309, Issue 9, Page 2424-2441, September 2026.
Abstract With the development of dental microwear texture analysis (DMTA), there has been an increasing application of DMTA for dietary estimation in extant and fossil reptiles, including dinosaurs. While numerous feeding experiments exist for herbivorous mammals, knowledge remains limited for carnivorous reptiles. This study aimed to qualitatively and
K. Usami, M. O. Kubo
wiley   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part II Deriving instrument‐specific correction equations for meta‐analyses using published data

The Anatomical Record, Volume 309, Issue 9, Page 2455-2475, September 2026.
Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo, T. Kubo, Ellen Schulz‐Kornas, T. M. Kaiser, Daniela E. Winkler   +4 more
wiley   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part I Reproducibility of diet inference using different instruments

The Anatomical Record, Volume 309, Issue 9, Page 2442-2454, September 2026.
Abstract Dental microwear texture analysis (DMTA) has become a well‐established method for dietary inference and reconstruction in both extant and extinct mammals and other tetrapods. As the volume of available data continues to grow, researchers could benefit from combining published data from various studies to perform meta‐analyses.
Daniela E. Winkler, Mugino O. Kubo
wiley   +1 more source

Dietary Adaptation in Paranthropus robustus Postcanine Teeth

American Journal of Biological Anthropology, Volume 190, Issue 4, August 2026.
Upper premolar enamel thickness in Paranthropus robustus increased significantly over time, especially in the occlusal region. ABSTRACT Objectives Recent studies of Paranthropus robustus crania identified temporal trends in features associated with increased bite force production, coinciding with environmental shifts toward more arid conditions.
M. C. O'Hara, S. Chapple, P. Mahoney, W. S. McGraw, Gary T. Schwartz, M. M. Skinner, D. Guatelli‐Steinberg   +6 more
wiley   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

Biological Reviews, Volume 101, Issue 4, Page 1760-1778, August 2026.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan, Case Vincent Miller, Michael Pittman   +2 more
wiley   +1 more source

Testing the Dry Refuge Model: Paleoecological Insights From Late Pleistocene Gomphotheres in Ecuador

Ecology and Evolution, Volume 16, Issue 8, August 2026.
We present paleontological evidence that may prove the Dry Refuge Model in Ecuador during the Late Pleistocene. ABSTRACT Paleoenvironmental records indicate that Neotropical regions near the Equator experienced reduced rainfall during the Last Glacial Maximum (LGM). However, some records show conflicting environmental signals.
Erwin González‐Guarda, Iván Ramírez‐Pedraza, Carlos Tornero, Lidiane Asevedo, Natalia Villavicencio, Sebastián Escobar, José Luis Román, Melissa Hidalgo, Esteban Benalcázar, Florent Rivals   +9 more
wiley   +1 more source