Results 61 to 70 of about 655 (130)

New data on the sarcopterygian Koharalepis jarviki (Tetrapodomorpha; Canowindridae) from the Late Devonian of Antarctica, revealed via synchrotron and neutron tomography

open access: yesFrontiers in Ecology and Evolution
IntroductionThe ‘osteolepiforms’ are an extinct order of lobe-finned fishes that had a cosmopolitan distribution, which are often considered for their proximity to the vertebrate water-to-land transition.
Corinne L. Mensforth   +3 more
doaj   +1 more source

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

open access: yesThe Anatomical Record, Volume 309, Issue 8, Page 1937-1969, August 2026.
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

Structural extremes in a cretaceous dinosaur.

open access: yesPLoS ONE, 2007
Fossils of the Early Cretaceous dinosaur, Nigersaurus taqueti, document for the first time the cranial anatomy of a rebbachisaurid sauropod. Its extreme adaptations for herbivory at ground-level challenge current hypotheses regarding feeding function and
Paul C Sereno   +6 more
doaj   +1 more source

NEUROANATOMY OF THE TITANOSAUR SAUROPOD NARAMBUENATITAN PALOMOI FROM THE UPPER CRETACEOUS OF PATAGONIA, ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2020
Narambuenatitan palomoi is a titanosaurian sauropod from the Upper Cretaceous of North Patagonia. Considered initially as a basal titanosaur, this taxon has uncertain phylogenetic relationships within the clade.
Ariana Paulina Carabajal   +2 more
doaj  

Looking for the origins of the human brain: The role of South Africa in the history of palaeoneurology

open access: yesSouth African Journal of Science
In 1925, Raymond Arthur Dart published his description and interpretations of the ‘Taung Child’ in the journal Nature, including a description of the natural brain endocast associated with the face and mandible.
Amélie Beaudet   +3 more
doaj   +1 more source

Petrosal morphology and cochlear function in Mesozoic stem therians.

open access: yesPLoS ONE, 2019
Here we describe the bony anatomy of the inner ear and surrounding structures seen in three plesiomorphic crown mammalian petrosal specimens. Our study sample includes the triconodont Priacodon fruitaensis from the Upper Jurassic of North America, and ...
Tony Harper, Guillermo W Rougier
doaj   +1 more source

The braincase of the basal sauropod dinosaur Spinophorosaurus and 3D reconstructions of the cranial endocast and inner ear.

open access: yesPLoS ONE, 2012
BackgroundSauropod dinosaurs were the largest animals ever to walk on land, and, as a result, the evolution of their remarkable adaptations has been of great interest.
Fabien Knoll   +4 more
doaj   +1 more source

Cranium of Sipalocyon externus (Metatheria, Sparassodonta) with remarks on the paleoneurology of hathliacynids and insights into the Early Miocene sparassodonts of Patagonia, Argentina

open access: yesSwiss Journal of Palaeontology
In this contribution, we investigate two sparassodonts from the Sarmiento Formation (Colhuehuapian Age; Early Miocene) recovered at the Patagonian locality of Sacanana, Chubut Province, Argentina.
Charlène Gaillard   +4 more
doaj   +1 more source

Brain structure and function in Homo naledi. [PDF]

open access: yesBrain Struct Funct
Cofran Z, Hurst S, Hawks J.
europepmc   +1 more source

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