Results 91 to 100 of about 33,386 (333)

Osteology and phylogeny of Robustichthys luopingensis, the largest holostean fish in the Middle Triassic

open access: yesPeerJ, 2019
The extinct ray-finned fish taxon Robustichthys luopingensis from Luoping, eastern Yunnan, China represents the largest holostean known in the Middle Triassic.
Guang-hui Xu
semanticscholar   +1 more source

Constrained variation in the internal architecture of avian wing bones

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Extant birds exhibit remarkable ecological disparity accompanied by widespread skeletal convergence driven by functional adaptation. Investigations of morphofunctional associations with ecological factors have frequently focused on the external morphology of avian wing ...
Fabio Alfieri   +4 more
wiley   +1 more source

Aristelliger [PDF]

open access: yes, 1993
Number of Pages: 4Integrative BiologyGeological ...
Bauer, Aaron M., Russell, Anthony P.
core   +1 more source

Bridging the Gap in Partial Repair of Full-Thickness Rotator Cuff Tears: A Case Report on the Rationale Behind Bioinductive Collagen Implants

open access: yesOsteology
Background/Objectives: Rotator cuff tears are a prevalent cause of shoulder pain and functional impairment. Full-thickness tears often require surgical intervention, but managing such injuries can be challenging, particularly when complete anatomical ...
Arianna Carnevale   +9 more
doaj   +1 more source

Appendicular Osteology of Concavenator corcovatus (Theropoda; Carcharodontosauridae; Early Cretaceous; Spain)

open access: yesJournal of Vertebrate Paleontology, 2018
The holotype of Concavenator corcovatus (MCCM-LH 6666) is a carcharodontosaurid skeleton from the Lower Cretaceous Las Hoyas fossil site in Spain. The appendicular skeleton of Concavenator is the most complete for any Carcharodontosauridae, with only a ...
Elena Cuesta, F. Ortega, J. Sanz
semanticscholar   +1 more source

Review of the tetrapod skull–neck boundary: implications for the evolution of the atlas–axis complex

open access: yesBiological Reviews, EarlyView.
ABSTRACT This review describes variation in modern and fossil occiput–atlas–axis complex anatomy of total group Tetrapoda with the aim of documenting the range of structural variation throughout their evolutionary history to establish grounds for comparison of the complex between tetrapod clades.
Dana E. Korneisel, Hillary C. Maddin
wiley   +1 more source

Digital dissection of the model organism Xenopus laevis using contrast-enhanced computed tomography [PDF]

open access: yes, 2017
The African clawed frog, Xenopus laevis, is one of the most widely used model organisms in biological research. However, the most recent anatomical description of X. laevis was produced nearly a century ago.
Ahn   +62 more
core   +2 more sources

Vertical Ridge Augmentation in the Anterior Maxilla Using a Dual‐Texture e‐PTFE Membrane and Autogenous Bone: A 2‐ to 5‐Year Retrospective Case‐Series Study

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objectives To evaluate a novel protocol for vertical ridge augmentation with titanium‐(Ti)‐reinforced dual‐texture expanded polytetrafluoroethylene (e‐PTFE) membranes, 100% autogenous bone, and 12 months of bone healing in the anterior maxilla.
David González   +2 more
wiley   +1 more source

Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy [PDF]

open access: yes, 2016
General comparisons of the manual elements of megaraptorid theropods are conducted with the aim to enlarge the morphological dataset of phylogenetically useful features within Tetanurae.
Agnolin, Federico   +2 more
core   +1 more source

Long‐Term Performance of Bi‐Layered Single Crowns Supported by Zirconia Implants: 7.5‐Year Results of a Two‐Center Prospective Cohort Study

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objective To evaluate the survival and success rates of veneered zirconia‐based single crowns (SCs) supported by zirconia implants in posterior regions, along with patient‐reported outcomes, over 7.5 years. Materials and Methods Forty‐five patients received zirconia implant‐supported posterior SCs (n = 45) composed of zirconia frameworks ...
Marc Balmer   +5 more
wiley   +1 more source

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