Results 11 to 20 of about 111,805 (229)

The postcranial skeleton of Cerrejonisuchus improcerus (Crocodyliformes: Dyrosauridae) and the unusual anatomy of dyrosaurids [PDF]

PeerJ, 2021
Dyrosauridae is a clade of neosuchian crocodyliforms that diversified in terrestrial and aquatic environments across the Cretaceous-Paleogene transition.
Isaure Scavezzoni, Valentin Fischer
doaj   +3 more sources

Cumulative effects of lifelong systemic excess growth hormone on postcranial skeletal morphology in adult mice. [PDF]

J Anat
Our μCT‐based pilot study reveals size and shape disparity in the adult postcranial skeleton of growth‐hormone model (bGH) mice relative to wild‐type mice. bGH mice have larger and more sexually dimorphic bones, with a systemic radiodensity increase in bony sesamoids and associated, but typically uncalcified, soft tissues.
Groenke JR, Liu H, Lach G, Wajpe A, Berryman D, Kopchick JJ, Zhu S, O'Connor PM.   +7 more
europepmc   +2 more sources

Secular Changes in the Postcranial Skeleton of American Whites [PDF]

Human Biology, 2016
Secular change in height has been extensively investigated, but size and shape of the postcranial skeleton much less so. The availability of large, documented collections of nineteenth- and twentieth-century skeletons makes it possible to examine changes in skeletal structure over the past 150 years. We examined secular changes in long bone lengths and
Richard L, Jantz, Lee Meadows, Jantz, Joanne L, Devlin   +2 more
core   +5 more sources

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs. [PDF]

J Anat
Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Beeston SL, Schwarz D, Upchurch P, Poropat SF, Asbach P, Mannion PD.   +5 more
europepmc   +2 more sources

A high-resolution 3D reconstructed skeleton of the extinct dwarf whale Cetotherium riabinini from Ukraine [PDF]

Scientific Data
Cetotheres (family Cetotheriidae) were small-sized extinct baleen whales, likely the smallest among toothless baleen whales. Cetotherium riabinini Hofstein, 1948 is known as a single specimen, the holotype.
Svitozar Davydenko, Oleksandr Kovalchuk, Pavlo Otriazhyi, Pavel Gol’din   +3 more
doaj   +2 more sources

Postcranial anatomy of the Miocene hippopotamoids of Toros-Menalla, Chad. [PDF]

J Anat
We establish a framework for the identification of postcranial remains in hippopotamoids by describing and comparing for the first time two late Miocene hippopotamoids from Toros‐Menalla, Chad (Hexaprotodon garyam, an early hippopotamid, and Libycosaurus bahri, the last African anthracothere) with the common hippopotamus.
Scribano L, Lihoreau F, Houssaye A, Djetounako CN, Boisserie JR.   +4 more
europepmc   +2 more sources

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs. [PDF]

Anat Rec (Hoboken)
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Cornille A, Beguesse K, Wolff E, Zinner C, Asbach P, Clarac F, Witzmann F.   +6 more
europepmc   +2 more sources

Modelling compressive loading in large-bodied mammals reveals distinct biomechanical strategies in proboscidean humeri. [PDF]

J Anat
Graviportal proboscideans differ in limb morphology, adopting slender or more robust long bone morphotypes. Finite element analyses (FEA) on extant and extinct taxa reveal functional differences between morphotypes, with robust humeri exhibiting lower peak stress under neutral and off‐axis loading.
Wagner NF, Chatar N, Hennekam JJ.
europepmc   +2 more sources

A new large hypercarnivorous crocodyliform from the Maastrichtian of Southern Patagonia, Argentina. [PDF]

PLoS ONE
The first crocodyliform specimen from the Maastrichtian Chorrillo Formation (Austral Basin, Patagonia) is here described. The discovery was made about 30 km to the SW of the town of El Calafate (Province of Santa Cruz, Argentina) and consists of a ...
Fernando E Novas, Diego Pol, Federico L Agnolín, Ismar de Souza Carvalho, Makoto Manabe, Takanobu Tsuihiji, Sebastián Rozadilla, Gabriel L Lio, Marcelo P Isasi   +8 more
doaj   +2 more sources

New specimens of the basal ornithischian dinosaur Lesothosaurus diagnosticus Galton, 1978 from the Early Jurassic of South Africa [PDF]

, 2016
We describe new specimens of the basal ornithischian dinosaur Lesothosaurus diagnosticus Galton, 1978 collected from a bonebed in the Fouriesburg district of the Free State, South Africa.
Choiniere, JN, Butler, RJ, Baron, MG, Yates, AM, Barrett, PM   +4 more
core   +6 more sources