Results 11 to 20 of about 98 (74)

Titanosauriform teeth from the Cretaceous of Japan

open access: yesAnais da Academia Brasileira de Ciências, 2011
Sauropod teeth from six localities in Japan were reexamined. Basal titanosauriforms were present in Japan during the Early Cretaceous before Aptian, and there is the possibility that the Brachiosauridae may have been included. Basal titanosauriforms with
Haruo Saegusa, Yukimitsu Tomida
doaj   +1 more source

Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal [PDF]

open access: yesActa Palaeontologica Polonica
The first paleontological works on Mesozoic vertebrates from Portugal, carried out from the end of the 19th and the first half of the 20th century, provided the discovery of significant collections of vertebrate fossils.
Elisabete Malafaia   +4 more
doaj   +1 more source

Remains of Sauropoda (Reptilia, Saurischia) in the Lower Cretaceous (Upper Hauterivian/Lower Barremian) Limestones of SW Istria (Croatia)

open access: yesGeologia Croatica, 2010
Remains belonging 10 sauropod dinosaurs have recently been discovered in Upper Hauterivian/Lower Barremian (Lower Cretaceous)limestones of SW Istria (Croatia).
Fabio Marco Dalla Vecchia
doaj   +1 more source

Dinosaurios de la Península Ibérica

open access: yesEstudios Geologicos, 2006
registro de restos directos de dinosaurios en la Península Ibérica ha mostrado, en los últimos años, que puede ser muy relevante para el conocimiento de distintos aspectos de la historia evolutiva del grupo y, dada la posición de la Península Ibérica ...
F. Ortega   +4 more
doaj   +1 more source

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs

open access: yesJournal of Anatomy, EarlyView.
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.
Samantha L. Beeston   +5 more
wiley   +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

Revealing the use of dental indices to infer taxonomic variation in sauropod dinosaurs

open access: yesPalaeontology, Volume 67, Issue 5, September/October 2024.
Abstract Sauropod teeth are commonly categorized taxonomically by two well‐established measurement indices: slenderness index (SI; apicobasal height/mesiodistal width), which quantifies breadth, and compression index (CI; labiolingual width/mesiodistal width), which quantifies cross‐sectional circularity.
Timothy G. Frauenfelder   +3 more
wiley   +1 more source

The first dinosaurs from the Early Cretaceous Hami Pterosaur Fauna, China. [PDF]

open access: yesSci Rep, 2021
Wang X   +6 more
europepmc   +1 more source

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