Results 1 to 10 of about 552 (82)

Computed tomography reveals the endocranial anatomy of Crocodylia: Implications for phylogenetic relationships and ecomorphological convergence across Crocodylomorpha. [PDF]

J Anat
The evaluation of the endocranial anatomy of 43 crocodylian species reveals several differences, including variation in the curvature of the encephalic endocast, the size of the endosseous labyrinth and paratympanic sinuses, and the presence of additional snout sinuses.
Burke PMJ, Mannion PD.
europepmc   +2 more sources

When Virchow's law fails: Crouzon syndrome as a test case for quantitative suture closure-endocranial shape relationships. [PDF]

J Anat
Crouzon syndrome shows preserved intracranial volume but profoundly altered endocranial shape, with disrupted allometric coupling relative to controls. Treating calvarial suture patency as a continuous, age‐adjusted variable reveals strong system‐level covariation with endocranial morphology, effects invisible to conventional categorical suture scoring.
Steup FWR, Groenenboom EV, Delassus O, Balzeau A, Profico A, Paternoster G, Moazen M, Khonsari RH, Van De Lande LS, Taverne M.   +9 more
europepmc   +2 more sources

Virtual brain endocasts of the palaeanodont Metacheiromys marshi and the neurosensory evolution of early Pholidotamorpha. [PDF]

J Anat
We describe the endocranial anatomy of Metacheiromys marshi. Decrease in olfaction and eye movement control occurred through time in Pholidotamorpha and is likely linked to fossorial adaptations. The development of the orbital gyrus might be related to the evolution of myrmecophagy and the emergence of a protrusile tongue in early Pholidotamorpha ...
Cabasés Bru E, Moya-Costa R, Wible JR, Brusatte SL, Bertrand OC.   +4 more
europepmc   +2 more sources

Endocranial anatomy of the earliest Cretaceous European neosuchian crocodyliform Pholidosaurus purbeckensis provides new evidence for the ecological evolution of Pholidosauridae. [PDF]

J Anat
We present new insights into the internal cranial anatomy of the neosuchian crocodyliform Pholidosaurus purbeckensis, based on CT‐scan data of material from the lowermost Cretaceous Purbeck Limestone Group, southern UK. From the study of the endocast, we obtained new information on the phylogeny and the ecological evolution of the Family ...
Barbini L, Burke PMJ, Caddeo I, Romano M, Mannion PD.   +4 more
europepmc   +2 more sources

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates. [PDF]

Anat Rec (Hoboken)
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Caspar KR, Gutiérrez-Ibáñez C, George H, Holtz TR, Naish D, Hurlburt GR.   +5 more
europepmc   +2 more sources

Atlas of cortical sulcal imprints on Pan endocasts. [PDF]

J Anat
This comprehensive atlas documents the frequency, position, and variability of cortical sulcal imprints across 21 extant Pan endocasts, providing the first quantitative baseline for comparative paleoneurology. This atlas serves as a reference for distinguishing ancestral from derived features in hominin brain evolution.
de Jager EJ, Gilissen E, Risser L, Amiez C, Fonta C, Mescam M, Beaudet A.   +6 more
europepmc   +2 more sources

The olfactory bulb endocast as a proxy for mammalian olfaction [PDF]

Proceedings of the National Academy of Sciences of the United States of America
Anne-Claire Fabre, Thomas van de Kamp, Kevin le Verger   +2 more
exaly   +2 more sources

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

The 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, Julia Diez‐Valero, Ignacio Martínez, Rolf Quam, Brian A. Keeling, Nicole M. Webb, Mercedes Conde‐Valverde   +6 more
wiley   +1 more source

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato, Luke E. Nelson, Joshua A. Doyon, Donald B. Brinkman, Alison M. Murray   +4 more
wiley   +1 more source

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

The Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada, Takanobu Tsuihiji, Hiroki Ishikawa, Noriyuki Wakimizu, Soichiro Kawabe, Kodai Sakane   +5 more
wiley   +1 more source