Results 31 to 40 of about 611 (157)

Dental microwear of a basal ankylosaurine dinosaur, Jinyunpelta and its implication on evolution of chewing mechanism in ankylosaurs.

PLoS ONE, 2021
Jinyunpelta sinensis is a basal ankylosaurine dinosaur excavated from the mid Cretaceous Liangtoutang Formation of Jinyun County, Zhejiang Province, China.
Tai Kubo, Wenjie Zheng, Mugino O Kubo, Xingsheng Jin   +3 more
doaj   +1 more source

THE TUROLIAN HIPPARIONS FROM CIOBURCIU SITE (REPUBLIC OF MOLDOVA): SYSTEMATICS AND PALEODIET

Rivista Italiana di Paleontologia e Stratigrafia, 2022
The Cioburciu hipparions, Republic of Moldova, are included in a Turolian assemblage, approximately dated between 9 and 7 million years. We assess herein their taxonomic position, systematics, biogeography and paleodietary habits.
BOGDAN G. RĂŢOI, Bogdan Stelian Haiduc, GINA M. SEMPREBON, PAUL ŢIBULEAC, RAYMOND L. BERNOR   +4 more
doaj   +1 more source

Buccal dental-microwear and dietary ecology in a free-ranging population of mandrills (Mandrillus sphinx) from southern Gabon.

PLoS ONE, 2017
Analyses of dental micro- and macro-wear offer valuable information about dietary adaptations. The buccal surface of the teeth does not undergo attrition, indicating that dental microwear may directly inform about food properties. Only a few studies have,
Alice M Percher, Alejandro Romero, Jordi Galbany, Gontran Nsi Akoue, Alejandro Pérez-Pérez, Marie J E Charpentier   +5 more
doaj   +1 more source

Wear patterns and dental functioning in an Early Cretaceous stegosaur from Yakutia, Eastern Russia.

PLoS ONE, 2021
Isolated stegosaurian teeth from the Early Cretaceous high-latitude (palaeolatitude estimate of N 62°- 66.5°) Teete locality in Yakutia (Eastern Siberia, Russia) are characterized by a labiolingually compressed, slightly asymmetrical and mesiodistally ...
Pavel P Skutschas, Vera A Gvozdkova, Alexander O Averianov, Alexey V Lopatin, Thomas Martin, Rico Schellhorn, Petr N Kolosov, Valentina D Markova, Veniamin V Kolchanov, Dmitry V Grigoriev, Ivan T Kuzmin, Dmitry D Vitenko   +11 more
doaj   +1 more source

Sauropod dinosaur teeth from the lower Upper Cretaceous Winton Formation of Queensland, Australia and the global record of early titanosauriforms

Royal Society Open Science, 2022
The Upper Cretaceous Winton Formation of Queensland, Australia, has produced several partial sauropod skeletons, but cranial remains—including teeth—remain rare.
Stephen F. Poropat, Timothy G. Frauenfelder, Philip D. Mannion, Samantha L. Rigby, Adele H. Pentland, Trish Sloan, David A. Elliott   +6 more
doaj   +1 more source

Implications of diet for the extinction of saber-toothed cats and American lions. [PDF]

PLoS ONE, 2012
The saber-toothed cat, Smilodon fatalis, and American lion, Panthera atrox, were among the largest terrestrial carnivores that lived during the Pleistocene, going extinct along with other megafauna ∼12,000 years ago.
Larisa R G Desantis, Blaine W Schubert, Jessica R Scott, Peter S Ungar   +3 more
doaj   +1 more source

Exploratory Analysis of Objective Outcome Measures for the Clinical Assessment of Erosive Tooth Wear

Diagnostics, 2023
This study proposed using enamel surface texture and thickness for the objective detection and monitoring of erosive tooth wear (ETW), comparing them to the standard subjective Basic Erosive Wear Evaluation (BEWE).
Maria Jacinta Rosario H. Romero, Peter S. Ungar, Daniel Fried, Frank Lippert, Domenick T. Zero, Susan Zunt, George J. Eckert, Ana Gutierrez Gossweiler, Dylan Jacob Elkington-Stauss, Guillermo Tamayo-Cabeza, Adam B. Kelly, Troy Bartels, Camille Kita, Elizabeth Wewers, Anderson T. Hara   +14 more
doaj   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

The Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison, James Gregory, Christopher Jackson, Jordan Bestwick, Katlin Schroeder, Samuel J.L. Gascoigne, Paul Bills, Laura B. Porro, Philip D. Mannion, Paul M. Barrett   +9 more
wiley   +1 more source

Testing dental microwear as a proxy for characterising trophic ecology in fossil elasmobranchs (chondrichthyans)

Swiss Journal of Palaeontology
Dental microwear analysis is a well-established technique that provides valuable information about the diets of extant and extinct taxa. It has been used effectively in most major groups of vertebrates.
María Victoria Paredes-Aliaga, Héctor Botella, Alejandro Romero   +2 more
doaj   +1 more source