Results 81 to 90 of about 30,332 (300)

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

The Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

Molar macrowear reveals Neanderthal eco-geographic dietary variation

, 2011
Neanderthal diets are reported to be based mainly on the consumption of large and medium sized herbivores, while the exploitation of other food types including plants has also been demonstrated.
Kullmer, Ottmar, Luca Fiorenza, Stefano Benazzi, Friedemann Schrenk, Bromage, Timothy G., Tausch, Jeremy, Timothy G Bromage, Bromage, Timothy, Jeremy Tausch, Timothy G. Bromage, Fiorenza, Luca, Benazzi, Stefano, Schrenk, Friedemann, Ottmar Kullmer   +13 more
core   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Association of dietary habits and parental-reported sleep tooth grinding with tooth wear in children with mixed dentition

BMC Oral Health, 2017
Background Tooth wear has a multifactorial etiology, thus it should be assessed within a multiple-variable framework. The objective of this investigation was to assess the association of dietary habits and parental-reported sleep tooth grinding (STG ...
Claudia Restrepo, Daniele Manfredini, Ruben Manrique, Frank Lobbezoo   +3 more
doaj   +1 more source

Examination on the wear process of polyformaldehyde gears under dry and lubricated conditions

Friction, 2020
This study presents the results of detailed wear process examination on polyformaldehyde gears under both dry and lubricated conditions. A multi-purpose durability test rig was employed to study the wear performance of polyformaldehyde gear pairs.
Guoda Yu, Huaiju Liu, Ken Mao, Caichao Zhu, Zehua Lu   +4 more
doaj   +1 more source

Occlusal wear pattern analysis of functional morphology in Neanderthals and early Homo sapiens dentition

, 2010
Very little is known about the occlusal wear pattern in the Neanderthal posterior dentition. Usually dental wear is closely related to the physical properties of the ingested food, and consequently can be used to obtain information about diet ...
Fiorenza, Luca
core  

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

The Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source

Tooth Wear Lesions: Prevalence and Associated Risk Factors Among Patients Attending the Dental Clinic of a Tertiary Hospital in Ondo State, Nigeria

Nigerian Dental Journal
Objective To determine the prevalence of tooth wear lesions and assess associated risk factors among patients attending the dental clinic of a state tertiary teaching hospital in Nigeria.
Augustine Ikponmwosa Edomwonyi, Jacob Babatunde Afolabi , Olayinka Timothy Edun, Samuel Akinfolarin Akinsanya, Precious Oreoluwa Akingbule, Fayokemi Patricia Abiodun   +5 more
doaj   +1 more source

‘Do larger molars and robust jaws in early hominins represent dietary adaptation?’ A New Study in Tooth Wear

, 2013
Diet imposes significant constraints on the biology and behaviour of animals. The fossil record suggests that key changes in diet have taken place throughout the course of human evolution.
Clement, A
core  

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

The Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa, Marcos Vinícius Coelho, Camila Cupello   +2 more
wiley   +1 more source