Neural canal ridges: A novel osteological correlate of postcranial neuroanatomy in dinosaurs [PDF]
The Anatomical Record, Volume 308, Issue 5, Page 1349-1368, May 2025.Abstract In this article, we document the widespread presence of bony ridges in the neural canals of non‐avian dinosaurs, including a wide diversity of sauropods, two theropods, a thyreophoran, and a hadrosaur. These structures are present only in the caudal vertebrae.
Jessie Atterholt +7 more
wiley +2 more sources
Several occurrences of osteomyelitis in dinosaurs from a site in the Bauru Group, Cretaceous of Southeast Brazil [PDF]
The Anatomical Record, Volume 309, Issue 3, Page 642-648, March 2026.Abstract This study investigates the occurrence of osteomyelitis in non‐avian dinosaurs, focusing on the Ibirá locality, a site with a high incidence of this pathological condition. We analyzed six new osteopathic sauropod specimens from the Upper Cretaceous of Brazil.
Tito Aureliano +3 more
wiley +2 more sources
New information on Late Triassic sauropodomorph dinosaurs provides support for the independent acquisition of postcranial skeletal pneumaticity in avemetatarsalian lineages [PDF]
Journal of Anatomy, Volume 248, Issue 3, Page 541-578, March 2026.PSP in early‐branching sauropodomorphs probably evolved first in the neural arches of the posterior cervical vertebrae, expanding anteriorly and posteriorly along the vertebral column. The distribution of PSP in Late Triassic early‐branching sauropodomorphs does not appear to be correlated with body size.
Samantha L. Beeston +5 more
wiley +2 more sources
Evolution of hind limb morphology of Titanosauriformes (Dinosauria, Sauropoda) analyzed via 3D geometric morphometrics reveals wide-gauge posture as an exaptation for gigantism [PDF]
eLifeThe sauropod hind limb was the main support that allowed their gigantic body masses and a wide range of dynamic stability adaptations. It was closely related to the position of the center of masses of their multi-ton barrel-shaped bodies and experienced ...
Adrián Páramo +3 more
doaj +2 more sources
Posture and mechanics of the forelimbs of Brachiosaurus brancai (Dinosauria: Sauropoda) [PDF]
Fossil 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 +7 more sources
Cases of pathological bone growth in Isanosaurus and Spinophorosaurus (Sauropoda)
, 2018 The histology of the long bone of sauropods appears uniform and conservative along the Sauropoda evolutionary tree. One of the main aspects of their bone histology is to exhibit a Fibrolamellar Complex (FLC) in the cortex of their long bones. However, we report Radial Fibrolamellar bone (RFB) in the outer cortex of the humeri of a young adult ...
Jentgen, Benjamin Paul C +2 more
core +3 more sources
Ecomorphospace occupation of large herbivorous dinosaurs from Late Jurassic through to Late Cretaceous time in North America [PDF]
PeerJ, 2022 Following the Late Jurassic, megaherbivore communities in North America undergo a dramatic turnover in faunal composition: sauropods decline to the point of becoming relatively minor components of ecosystems, stegosaurs become extinct, and hadrosaurids ...
Taia Wyenberg-Henzler
doaj +3 more sources
Bicharracosaurus dionidei, gen. et sp. nov., a new macronarian (Dinosauria, Sauropoda) from the Late Jurassic Cañadón Calcáreo Formation of Argentina and the problematic early evolution of macronarians [PDF]
PeerJOur understanding of Late Jurassic sauropod faunas heavily relies on the fossil record of the northern hemisphere. During the last two decades, paleontological fieldwork in the Oxfordian-Kimmeridgian Cañadón Calcáreo Formation of Argentina has yielded ...
Alexandra Reutter +4 more
doaj +3 more sources
A new sauropod dinosaur hindlimb from the Lower Cretaceous Wessex Formation, Isle of Wight, UK [PDF]
Royal Society Open ScienceThe Barremian-aged Wessex Formation of the Isle of Wight, UK, offers a globally significant glimpse into the sauropod dinosaur faunas of the early Cretaceous. These deposits have yielded specimens of several neosauropod lineages, such as rebbachisaurids,
Robert R. Higgins +3 more
doaj +4 more sources
Skull morphology and histology indicate the presence of an unexpected buccal soft tissue structure in dinosaurs [PDF]
Journal of Anatomy, Volume 247, Issue 3-4, Page 790-818, September/October 2025.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.
Henry S. Sharpe +7 more
wiley +2 more sources