Results 71 to 80 of about 1,063 (188)

HEAD, SKULL–NECK AND EXTRINSIC EYE MUSCULATURE OF THE DICRAEOSAURID SAUROPOD BAJADASAURUS PRONUSPINAX

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina
Cranial muscles perform important roles triggering diverse paleobiological faculties, such as feeding, communication, alert postures, etc. Within Sauropoda, a clade with high specializations in skull architectures, and several partially complete skulls ...
Juan Pablo Garderes   +4 more
doaj   +1 more source

Posture and mechanics of the forelimbs of Brachiosaurus brancai (Dinosauria: Sauropoda) [PDF]

open access: yesFossil Record, 1999
The posture and mechanics of the forelimbs of Brachiosaurus brancai were analysed with the help of biomechanical models. Peak forces in the joints due to acceleration of the fraction of body weight carried on the shoulder joints are critical in models ...
A. Christian, W.-D. Heinrich, W. Golder
doaj   +1 more source

Sauropoda (Reptilia, Saurischia) from the Cretaceous of Queensland

open access: yes, 1981
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Coombs, Walter P., Molnar, R E
openaire   +1 more source

Reassessment of Laplatasaurus araukanicus (Sauropoda: Titanosauria) from the Upper Cretaceous of Patagonia, Argentina [PDF]

open access: yesAmeghiniana, 2015
Abstract. The original material assigned to Laplatasaurus araukanicus Huene come from five different localities in northern Patagonia (Argentina) where the Upper Cretaceous (Campanian) lies exposed. This material includes several postcranial bones from multiple specimens and showing different conditions of preservation, often lacking anatomical overlap.
Gallina, Pablo Ariel, Otero, Alejandro
openaire   +2 more sources

Hypothetical lung structure of Brachiosaurus (Dinosauria: Sauropoda) based on functional constraints [PDF]

open access: yesFossil Record, 1999
Comparison of avian and crocodylian lung structure suggests a basic archosaurian structural type, consisting of four rows of chambers that radiate independently from an intrapulmonary bronchus.
S. F. Perry, C. Reuter
doaj   +1 more source

Standing giants: a digital biomechanical model for bipedal postures in sauropod dinosaurs

open access: yesPalaeontology, 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

FIG. 31 in Anatomy and phylogenetic relationships of Tazoudasaurus naimi (Dinosauria, Sauropoda) from the late Early Jurassic of Morocco

open access: yes, 2008
FIG. 31. — Tazoudasaurus naimi, left(?) calcaneum (To1-356): A, dorsal view; B, medial view. Scale bar: 5 cm.Published as part of Allain, Ronan & Aquesbi, Najat, 2008, Anatomy and phylogenetic relationships of Tazoudasaurus naimi (Dinosauria, Sauropoda ...
Allain, Ronan, Aquesbi, Najat
core   +1 more source

Description of a new specimen of Haplocanthosaurus from the Dry Mesa Dinosaur Quarry

open access: yesThe 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

Bone histology of the titanosaur Lirainosaurus astibiae (Dinosauria: Sauropoda) from the Latest Cretaceous of Spain [PDF]

open access: yes, 2010
[EN] The titanosaur Lirainosaurus astibiae is the only sauropod species known from the Late Cretaceous of the Iberian Peninsula. Lirainosaurus did not reach a gigantic body size and is one of the smallest sauropods discovered to date.
Company Rodríguez, Julio, Julio Company
core   +1 more source

Cautionary tales on the use of proxies to estimate body size and form of extinct animals

open access: yesEcology 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

Home - About - Disclaimer - Privacy