Results 151 to 160 of about 49,113 (353)

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

open access: yesThe 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

Analysis of Local Factors Predisposing to Disorders in Dentition of Upper Permanent Canine Tooth

open access: yesČeská Stomatologie a Praktické Zubní Lékařství, 2007
Objective: The aim of the present study was to analyze incidence of individual local factors participating in etiology of disorders in dentition of upper permanent canine tooth.
P. Černochová
doaj  

Erupted Complex Odontoma Mimicking a Mandibular Second Molar [PDF]

open access: yes, 2015
Complex odontoma (CO) is considered one of the most common odontogenic lesions, composed by a miscellaneous of dental tissue such as enamel, dentin, pulp and sometimes cementum.
Almeida, Luis Eduardo   +4 more
core   +1 more source

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli   +6 more
wiley   +1 more source

A Methodology for Three-Dimensional Quantification of Anterior Tooth Width [PDF]

open access: yes, 2011
The use of cone-beam computed tomography (CBCT) technology has been shown to be more accurate in measuring individual incisor tooth widths than the use of wax exemplars. There were fewer differences by investigators using CBCT than others using an F-test
Ahn, Kwang Woo   +5 more
core   +1 more source

A Rare Case of ''Double Teeth'' in Permanent Dentition [PDF]

open access: hybrid, 2017
Merve Mutluay   +2 more
openalex   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

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