Results 21 to 30 of about 2,384 (180)

Notes on the axial skeleton of the titanosaur Bonitasaura salgadoi (Dinosauria-Sauropoda)

Anais da Academia Brasileira de Ciências, 2011
Sauropod axial anatomy is particularly important in understanding morphological features and phylogenetic analyses. Spatial arrangement of zygapophyses and rib articulations, as well as their complex laminar development, help to recognize the relative ...
Pablo A. Gallina
doaj   +2 more sources

A new gigantic titanosaurian sauropod from the early Late Cretaceous of Patagonia (Neuquén Province, Argentina) [PDF]

Acta Palaeontologica Polonica, 2023
A new gigantic titanosaur Bustingorrytitan shiva gen. et sp. nov. is described. The four specimens upon which this species is erected come from Neuquén Province, Argentina, from levels of the Huincul Formation (Cenomanian).
MARÍA EDITH SIMÓN, LEONARDO SALGADO
doaj   +1 more source

Novel pneumatic features in the ribs of the sauropod dinosaur Brachiosaurus altithorax [PDF]

Acta Palaeontologica Polonica, 2023
Pneumatic dorsal ribs are known for many sauropods, but to date costal pneumaticity has received relatively little attention. In particular, the pneumatic ribs of the holotype specimen of Brachiosaurus altithorax have been largely overlooked, although ...
MICHAEL P. TAYLOR, MATHEW J. WEDEL
doaj   +1 more source

Sauropod Trackway Morphometrics: An Exploratory Study Using Highway A16 Excavation at the Courtedoux-Tchâfouè Track Site (Late Jurassic, NW Switzerland)

Frontiers in Earth Science, 2022
Ichnogeneric classification of sauropod trackways is determined using qualitative and quantitative descriptions of morphological parameters. More recently, the validity of several of these parameters has been called into question (e.g., trackway gauge ...
Lara Sciscio, Lara Sciscio, Matteo Belvedere, Christian A. Meyer, Daniel Marty   +4 more
doaj   +1 more source

Skull morphology and histology indicate the presence of an unexpected buccal soft tissue structure in dinosaurs. [PDF]

J Anat
A combined approach of osteology and histology was used to examine the cheek regions of dinosaurs. Strong evidence was found for a soft tissue in this region connecting the zygoma to the mandible, here named the ‘exoparia’. Abstract Unlike mammals, reptiles typically lack large muscles and ligaments that connect the zygoma to the mandible.
Sharpe HS, Wang YY, Dudgeon TW, Powers MJ, Whitebone SA, Coppock CC, Dyer AD, Sullivan C.   +7 more
europepmc   +2 more sources

The Tail of the Late Jurassic Sauropod Giraffatitan brancai: Digital Reconstruction of Its Epaxial and Hypaxial Musculature, and Implications for Tail Biomechanics

Frontiers in Earth Science, 2020
Dinosaur locomotion and biomechanics, especially of their pelvic girdles and hindlimbs, have been analyzed in numerous studies. However, detailed volumetric musculoskeletal models of their tails are rarely developed.
Verónica Díez Díaz, Verónica Díez Díaz, Oliver E. Demuth, Oliver E. Demuth, Daniela Schwarz, Heinrich Mallison, Heinrich Mallison   +6 more
doaj   +1 more source

Bite and tooth marks on sauropod dinosaurs from the Morrison Formation [PDF]

PeerJ, 2023
Tooth-marked bones provide important evidence for feeding choices made by extinct carnivorous animals. In the case of the dinosaurs, most bite traces are attributed to the large and robust osteophagous tyrannosaurs, but those of other large carnivores ...
Roberto Lei, Emanuel Tschopp, Christophe Hendrickx, Mathew J. Wedel, Mark Norell, David W.E. Hone   +5 more
doaj   +2 more sources

What's inside a sauropod limb? First three‐dimensional investigation of the limb long bone microanatomy of a sauropod dinosaur, Nigersaurus taqueti (Neosauropoda, Rebbachisauridae), and implications for the weight‐bearing function

Palaeontology, Volume 66, Issue 4, July/August 2023., 2023
Abstract Various terrestrial tetrapods convergently evolved to gigantism (large body sizes and masses), the most extreme case being sauropod dinosaurs. Heavy weight‐bearing taxa often show external morphological features related to this condition, but also adequacy in their limb bone inner structure: a spongiosa filling the medullary area and a rather ...
Rémi Lefebvre, Ronan Allain, Alexandra Houssaye   +2 more
wiley   +1 more source

Teeth of embryonic or hatchling sauropods from the Early Cretaceous (Berriasian) of Cherves-de-Cognac, France [PDF]

, 2016
Copyright © 2016 P.M. Barrett et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License (for details please see http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution,
Barrett, PM, Jones, F, Mazin, J-M, Pouech, J   +3 more
core   +8 more sources

Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal [PDF]

Acta Palaeontologica Polonica
The first paleontological works on Mesozoic vertebrates from Portugal, carried out from the end of the 19th and the first half of the 20th century, provided the discovery of significant collections of vertebrate fossils.
Elisabete Malafaia, Pedro Mocho, Fernando Escaso, Ivan Narvaéz, Francisco Ortega   +4 more
doaj   +1 more source