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Development and evolution of the unique cetacean dentition.

The evolutionary success of mammals is rooted in their high metabolic rate. A high metabolic rate is sustainable thanks to efficient food processing and that in turn is facilitated by precise occlusion of the teeth and the acquisition of rhythmic…

Tags: 2013, Armfield Brooke A, Bajpai Sunil, Cetacea, Cetacean, Department of Anatomy & Neurobiology, Evo-devo, NEOMED College of Medicine, Paleontology, PeerJ, Teeth, Thewissen J G M, Vinyard Christopher J, Zheng Zhengui

The Functional Morphology Of The Anterior Masticatory Apparatus In Tree-gouging Marmosets (cebidae, Primates)

Although all genera of Callitrichinae feed on tree exudates, marmosets (Callithrix and Cebuella) use specialized anterior teeth to gouge holes in trees and actively stimulate exudate flow. Behavioral studies demonstrate that marmosets use large jaw…

Dietary signals in the premolar dentition of primates.

Dietary adaptations specific to the premolar row remain largely undocumented across primates. This study examines how relative premolar size varies among broad dietary groups (i.e., folivores, frugivores, insectivores, hard-object feeders) using a…

Tags: 2018, Adaptation, Baj Luisa M, Burns Maegan C, Campbell Ryan M, Feeding, Functional morphology, Journal of human evolution, Mastication, Price Mia S, Scott Jeremiah E, Sykes Jaime D, Teeth, Vinyard Christopher J

Dental maturation, eruption, and gingival emergence in the upper jaw of newborn primates.

In this report we provide data on dental eruption and tooth germ maturation at birth in a large sample constituting the broadest array of non-human primates studied to date. Over 100 perinatal primates, obtained from natural captive deaths, were…

Highlights of Cetacean Embryology

The embryology of cetaceans documents features that elucidate the interaction between form and function in modern species, as well as their evolution from extinct ones. Prenatal specimens of the dolphin Stenella attenuata demonstrate critical aspects…

Phase II jaw movements and masseter muscle activity during chewing in Papio anubis

It was proposed that the power stroke in primates has two distinct periods of occlusal contact, each with a characteristic motion of the mandibular molars relative to the maxillary molars. The two movements are called phase I and phase IT, and they…

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