Results 121 to 130 of about 49,641 (255)

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

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

open access: yesThe 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   +4 more
wiley   +1 more source

Tooth characters of protohippine horses with special reference to species from the Merychippus zone, California [PDF]

open access: yes, 1934
The critical review of equine tooth characters attempted in this paper is the result of a study of the protohippine horses obtained from the Merychippus Zone of the north Coalinga district, California.
Bode, Francis D.
core  

Mesiodens in a permanent and mixed dentition

open access: yesЭндодонтия Today, 2020
Supernumerary teeth are considered one of the most significant tooth abnormalities in the initial and early stages of mixed and primary dentition. They are of great importance to dentists and parents because of the problems that they can cause. Mesiodens is one of the supernumerary teeth.
A. I. Markova   +5 more
openaire   +1 more source

Cortical bone distribution in the human mandibular symphysis: Ontogenic and morphometric approaches in archeological context

open access: yesThe Anatomical Record, EarlyView.
Abstract The human mandibular symphysis concentrates multiaxial loads during function and remodels throughout growth, but the precise mechanisms underlying cortical bone shape during growth remain relatively unexplored. Approaches based solely on thickness or external cortical contours provide only partial insights and do not capture the functional ...
Ana Ribeiro   +3 more
wiley   +1 more source

Conservative Treatment of Fused Teeth in Permanent Dentition [PDF]

open access: yes, 2005
Fuzija zubi rijetka je razvojna anomalija i ubraja se u anomalije veličine zuba. Stapanje se može dogoditi samo na razini cakline ili na razini cakline i dentina. Rezultat toga je nastanak jednoga zuba s klinički povećanom krunom. Etiologija fuzije nije
Ana Malčić, Goranka Prpić-Mehičić
core   +1 more source

Integrating whole‐bone and regional analyses to understand human scapular growth

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigates ontogenetic changes in human scapular morphology using three‐dimensional geometric morphometrics with whole‐bone and region‐specific analyses. The aim is to evaluate whether the scapula follows a regular developmental pattern and whether its functionally distinct components, the scapular spine (SS) and glenoid fossa ...
Azahara Salazar‐Fernández   +3 more
wiley   +1 more source

Prevalence of different types of interproximal contacts in the permanent dentition – a study cast evaluation [version 3; peer review: 1 approved, 2 approved with reservations]

open access: yesWellcome Open Research
Background A new classification called OXIS was proposed for categorizing the interproximal contacts of primary molars, modified for the primary canines and its prevalence was established.
Vignesh Kailasam   +6 more
doaj   +1 more source

Green Teeth in the Primary and Permanent Dentition [PDF]

open access: yesThe Journal of Pediatrics, 2017
Isabella Bittencourt, do Valle   +4 more
openaire   +2 more sources

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