Results 11 to 20 of about 142 (99)

Titanosauriform teeth from the Cretaceous of Japan [PDF]

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   +5 more sources

A new titanosauriform sauropod (Dinosauria: Saurischia) from the Lower Cretaceous of Hyogo, Japan [PDF]

open access: yesZootaxa, 2014
A new genus and species of titanosauriform sauropod is erected based on a partial skeleton found in the Lower Cretaceous Sasayama Group of Hyogo Prefecture, SW Japan. The new taxon is here named as Tambatitanis amicitiae gen. et sp. nov., which is diagnosed by the following features of the caudal vertebrae, chevrons and braincase: the postzygapophysis ...
Haruo, Saegusa, Tadahiro, Ikeda
openaire   +3 more sources

New information on the Cretaceous sauropod dinosaurs of Zhejiang Province, China: impact on Laurasian titanosauriform phylogeny and biogeography. [PDF]

open access: yesR Soc Open Sci, 2019
Titanosaurs were a globally distributed clade of Cretaceous sauropods. Historically regarded as a primarily Gondwanan radiation, there is a growing number of Eurasian taxa, with several putative titanosaurs contemporaneous with, or even pre-dating, the oldest known Southern Hemisphere remains.
Mannion PD, Upchurch P, Jin X, Zheng W.
europepmc   +6 more sources

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

Characterizing the Evolution of Wide‐Gauge Features in Stylopodial Limb Elements of Titanosauriform Sauropods via Geometric Morphometrics [PDF]

open access: yesThe Anatomical Record, 2017
ABSTRACTWide‐gauge posture of titanosauriform sauropods remains an enigmatic peculiarity among terrestrial vertebrates. Here, two‐dimensional geometric morphometrics and thin plate splines analyses were used to quantitatively analyze shape differences among sauropodomorph humeri and femora to identify how these elements may differ according to body ...
Paul V. Ullmann   +2 more
openaire   +2 more sources

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

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

Early Cretaceous titanosauriform cervical UMNH 21054, or, “Hello again, beautiful”

open access: yes, 2015
Here at SV-POW! Towers, we’re keenly aware that some of our fans are just here for the hardcore sauropod vertebra action. These folks start to shift in their seats when we put up too many posts in a row on open access or rabbits or…okay, mostly just OA and bunnies. If that’s you – or, heck, even if it isn’t – your good day has come. Saddle up.
openaire   +1 more source

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