Results 11 to 20 of about 116 (91)
Perinatal Specimens of Saurolophus angustirostris (Dinosauria: Hadrosauridae), from the Upper Cretaceous of Mongolia. [PDF]
PLoS ONE, 2015 The Late Cretaceous Nemegt Formation, Gobi Desert, Mongolia has already yielded abundant and complete skeletons of the hadrosaur Saurolophus angustirostris, from half-grown to adult individuals.Herein we describe perinatal specimens of Saurolophus ...
Leonard Dewaele +6 more
doaj +6 more sources
Description and etiology of paleopathological lesions in the type specimen of Parasaurolophus walkeri (Dinosauria: Hadrosauridae), with proposed reconstructions of the nuchal ligament [PDF]
Journal of Anatomy, Volume 238, Issue 5, Page 1055-1069, May 2021., 2021 The fossilized lesions in Parasaurolophus walkeri comprise periodontal disease, fractured ribs, and myositis ossificans traumatica in a number of vertebral dorsal spines and in the ilium. The injuries appear to have been caused by one or more non‐threatening events. The discoidal overgrowth on the dorsal spines m ight represent a pathological correlate
Filippo Bertozzo +6 more
wiley +5 more sources
The Anatomical Record, Volume 309, Issue 7, Page 1702-1712, July 2026.Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano +3 more
wiley +4 more sources
PLoS ONE, 2011 The well-sampled Late Cretaceous fossil record of North America remains the only high-resolution dataset for evaluating patterns of dinosaur diversity leading up to the terminal Cretaceous extinction event.
Nicolás E Campione, David C Evans
doaj +5 more sources
Royal Society Open Science, 2021 During the Cretaceous, diversifications and turnovers affected terrestrial vertebrates experiencing the effects of global geographical change. However, the poor fossil record from the early Late Cretaceous has concealed how dinosaurs and other ...
Chase Doran Brownstein
doaj +1 more source
Evolution &Development, Volume 25, Issue 3, Page 209-225, May 2023., 2023 We contrast the morphology of calvarial sutures through ontogeny and evolution in iguanodontian dinosaurs to test whether the evolution of cranial crests impacted the mechanical loading of the skull. We found that increased suture complexity coincided with crest evolution, and corresponding modifications to their skull altered stress distribution while
Thomas W. Dudgeon, David C. Evans
wiley +1 more source
Estudios Geologicos, 1995 El yacimiento del Cretácico superior (Maastrichtiense) de EIs Nerets (Tremp, Lleida) ha proporcionado diversos huesos de saurópodo: un fragmento de centro de vértebra dorsal, un húmero incompleto, fémur y tibia.
Mª. L. Casanovas-Cladellas +3 more
doaj +1 more source
Vertebrate Anatomy, Morphology, Palaeontology, 2019 A nearly complete, but isolated, femur of a small hadrosaurid from the Hell Creek Formation of Montana is tentatively referred to Edmontosaurus annectens.
Andrew Farke, Eunice Yip
doaj +3 more sources
A new hadrosauroid dinosaur from the early late cretaceous of Shanxi Province, China. [PDF]
PLoS ONE, 2013 BackgroundThe origin of hadrosaurid dinosaurs is far from clear, mainly due to the paucity of their early Late Cretaceous close relatives. Compared to numerous Early Cretaceous basal hadrosauroids, which are mainly from Eastern Asia, only six early Late ...
Run-Fu Wang +7 more
doaj +1 more source