Results 191 to 200 of about 215,489 (356)

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

open access: yesThe Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey   +3 more
wiley   +1 more source

Inhibition of histone deacetylase 3 in dental mesenchyme regulates the development of tooth root. [PDF]

open access: yesJ Bone Miner Res
Niibe K   +9 more
europepmc   +1 more source

USP34 regulates tooth root morphogenesis by stabilizing NFIC. [PDF]

open access: yesInt J Oral Sci, 2021
Jiang S   +5 more
europepmc   +1 more source

Gear tooth stress measurements on the UH-60A helicopter transmission [PDF]

open access: yes
The U.S. Army UH-60A (Black Hawk) 2200-kW (3000-hp) class twin-engine helicopter transmission was tested at the NASA Lewis Research Center. Results from these experimental (strain-gage) stress tests will enhance the data base for gear stress levels in ...
Oswald, Fred B.
core   +1 more source

Genetic identification in endodontic treated tooth root [PDF]

open access: bronze, 2008
Ana Côrte-Real   +10 more
openalex   +1 more source

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

The stoic tooth root: how the mineral and extracellular matrix counterbalance to keep aged dentin stable. [PDF]

open access: yesActa Biomater, 2022
Reis M   +7 more
europepmc   +1 more source

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