Results 51 to 60 of about 210 (133)

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

Palaeontology, 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, Gabriel S. Ferreira, Agustín G. Martinelli, Thiago S. Marinho, Felipe C. Montefeltro   +4 more
wiley   +1 more source

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

The 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, Brian Curtice, Mathew Wedel, Ray Wilhite   +3 more
wiley   +1 more source

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

Palaeontology, 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, Sienna A. Birch, Phil R. Bell, Nicolás E. Campione   +3 more
wiley   +1 more source

Small body size and extreme cortical bone remodeling indicate phyletic dwarfism in Magyarosaurus dacus (Sauropoda: Titanosauria) [PDF]

Proceedings of the National Academy of Sciences, 2010
Sauropods were the largest terrestrial tetrapods (>10 5 kg) in Earth's history and grew at rates that rival those of extant mammals. Magyarosaurus dacus , a titanosaurian sauropod from the Upper Cretaceous (Maastrichtian) of Romania, is known ...
Stein, Koen, Csiki, Zoltan, Curry-Rogers, Kristy, Weishampel, David, Redelstorff, Ragna, Carballido, Jose, Sander, Paul Martin   +6 more
openaire   +4 more sources

Redescription ofBonatitan reigi(Sauropoda: Titanosauria), from the Campanian–Maastrichtian of the Río Negro Province (Argentina)

Historical Biology, 2014
The titanosaur sauropod Bonatitan reigi is redescribed. The material collected, originally interpreted as pertaining to two different individuals, is reorganised in five individuals, and the original type specimen is separated into three different individuals. One of the braincases is designated as a new type specimen.
Salgado, Leonardo, Gallina, Pablo Ariel, Paulina Carabajal, Ariana   +2 more
openaire   +2 more sources

Titanosauria of the Bauru Group: a summary of records and their importance for understanding the diversity of the clade in Brazil

Andean Geology
The present study provides a synthesis of the diversity and geographical distribution of Titanosauria (Dinosauria: Sauropoda) from Upper Cretaceous rocks of the Bauru Group in Brazil. There are currently ten valid species of titanosaurs described for the Bauru Group, some of which exhibit similarities to species found in Argentina.
Edna Gomes Nascimento, Carlos Roberto A. Candeiro, Luciano Vidal, Emerson Ferreira Oliveira, Tamires Carmo Dias, Stephen Brusatte   +5 more
openaire   +1 more source

Variación morfológica interespecífica en frontales de Titanosauria (Dinosauria, Sauropoda)

, 2020
La ...
Capurro, Iván Oscar, Gallina, Pablo Ariel, Leardi, Juan Martín   +2 more
openaire   +1 more source

New contributions to the presacral osteology of Saltasaurus loricatus (Sauropoda, Titanosauria) from the Upper Cretaceous of northern Argentina

Cretaceous Research, 2015
Abstract Saltasaurus loricatus is a derived form of sauropod dinosaur from the Upper Cretaceous of northern Argentina. In this work, we expand the information of the presacral vertebral column of Saltasaurus loricatus , including a detailed description of neural laminae, fossae and pneumatic foramina of the neural arch, and establish a comparative
Zurriaguz, Virginia Laura, Powell, Jaime Eduardo   +1 more
openaire   +2 more sources

Paleopathology of a putative colossosaurian caudal vertebra (Neosauropoda: Titanosauria) from the Presidente Prudente Formation, Brazil

The Anatomical Record
Abstract Studies investigating paleopathologies in sauropods remain scarce despite their relative abundance in the fossil record. In this study we report new occurrence of paleopathological features, corresponding to a neoplasm found in a middle caudal vertebra (MCT.R.2120) of an advanced titanosaur from the Presidente Prudente ...
Maria Luiza Peres Bertolossi, Kamila L. N. Bandeira, Roberta Veronese do Amaral, Arthur S. Brum, Rafael C. da Silva, Valéria Gallo   +5 more
openaire   +1 more source

Notes on the axial skeleton of the titanosaur Bonitasaura salgadoi (Dinosauria-Sauropoda)

Anais da Academia Brasileira de Ciências, 2011
Sauropod axial anatomy is particularly important in understanding morphological features and phylogenetic analyses. Spatial arrangement of zygapophyses and rib articulations, as well as their complex laminar development, help to recognize the relative ...
Pablo A. Gallina
doaj