Standing giants: a digital biomechanical model for bipedal postures in sauropod dinosaurs
Palaeontology, Volume 68, Issue 4, July/August 2025.ABSTRACT Here we explore the potential of sauropod dinosaurs to adopt a bipedal or tripodal stance using digital biomechanical modelling and finite element analysis (FEA). Seven sauropod species from diverse lineages and sizes were sampled, and 3D models of their femora were analysed under both extrinsic (body weight distribution) and intrinsic ...
Julian C. G. Silva Junior +4 more
wiley +1 more source
On a dicraeosaurid specimen from the Mulichinco Formation (Valanginian, Neuquén Basin) of Argentina and phylogenetic relationships of the South American dicraeosaurids (Sauropoda, Diplodocoidea) [PDF]
, 2022 Guillermo J. WINDHOLZ +6 more
openalex +1 more source
A specimen-level phylogenetic analysis and taxonomic revision of Diplodocidae (Dinosauria, Sauropoda) [PDF]
PeerJ, 2015 Diplodocidae are among the best known sauropod dinosaurs. Several species were described in the late 1800s or early 1900s from the Morrison Formation of North America.
Emanuel Tschopp +2 more
doaj +2 more sources
Description of a new specimen of Haplocanthosaurus from the Dry Mesa Dinosaur Quarry
The Anatomical Record, Volume 307, Issue 12, Page 3782-3800, December 2024.Abstract A new specimen of Haplocanthosaurus is described based on bones excavated from the Late Jurassic Dry Mesa Dinosaur Quarry near Delta, Colorado. The specimen consists of seven dorsal vertebrae and a right tibia and is identified as Haplocanthosaurus based on the dorsally angled transverse processes, tall neural arch peduncles, low parapophyses ...
Colin Boisvert +3 more
wiley +1 more source
Egg shape changes at the theropod–bird transition, and a morphometric study of amniote eggs [PDF]
, 2014 The eggs of amniotes exhibit a remarkable variety of shapes, from spherical to elongate and from symmetrical to asymmetrical. We examine eggshell geometry in a diverse sample of fossil and living amniotes using geometric morphometrics and linear ...
Abramoff MD +14 more
core +1 more source
Cautionary tales on the use of proxies to estimate body size and form of extinct animals
Ecology and Evolution, Volume 14, Issue 9, September 2024.Reconstructing the body size and form of extinct animals is of vital importance to our understanding of macroevolution and palaeontology. This is often done using anatomical proxies where extinct species are known only from fragmentary remains. However, there are many limitations influencing the selection of proxy taxa that are frequently overlooked ...
Joel H. Gayford +7 more
wiley +1 more source
no Município de Alfredo Marcondes (Estado de São Paulo), Formação Adamantina (Turoniano-Santoniano), Bacia Bauru. [PDF]
, 2007 Sauropod dinosaurs (Titanosauria) remains were collected in Upper Cretaceous sandstones, at Alfredo Marcondes site, Adamantina Formation, São Paulo state. These fossils comprise a fragmentary right femur and a proximal portion of a right tibia. The femur
Carlos Roberto dos Anjos Candeiro +2 more
core
The origin of an invasive air sac system in sauropodomorph dinosaurs
The Anatomical Record, Volume 307, Issue 4, Page 1084-1092, April 2024.Abstract One of the most remarkable features in sauropod dinosaurs relates to their pneumatized skeletons permeated by a bird‐like air sac system. Many studies described the late evolution and diversification of this trait in mid to late Mesozoic forms but few focused on the origin of the invasive respiratory diverticula in sauropodomorphs. Fortunately,
Tito Aureliano +6 more
wiley +1 more source
Description of a Titanosauriform (Sauropoda, Dinosauria) Cervical Vertebra from the Lower Cretaceous Kanmon Group, Southwestern Japan [PDF]
, 2023 Jun-Ichiro Tatehata +2 more
openalex +1 more source
Journal of Comparative Neurology, Volume 532, Issue 3, March 2024.Illustration of the endocranial doming, which can provide a proxy for the brain‐to‐endocranial cavity index, using the endocast of an adult of the iguanodont dinosaur Proa valdearinnoensis as an example. Abstract Although the brain fills nearly the entire cranial cavity in birds, it can occupy a small portion of it in crocodilians.
Fabien Knoll +2 more
wiley +1 more source