Results 61 to 70 of about 4,132 (266)

Osteohistology of the hyperelongate hemispinous processes of Amargasaurus cazaui (Dinosauria: Sauropoda): Implications for soft tissue reconstruction and functional significance

Journal of Anatomy, 2022
Dicraeosaurid sauropods are iconically characterized by the presence of elongate hemispinous processes in presacral vertebrae. These hemispinous processes can show an extreme degree of elongation, such as in the Argentinean forms Amargasaurus cazaui ...
I. Cerda, F. Novas, J. Carballido, L. Salgado   +3 more
semanticscholar   +1 more source

Phylogeny, histology and inferred body size evolution in a new rhabdodontid dinosaur from the Late Cretaceous of Hungary. [PDF]

, 2012
Rhabdodontid ornithopod dinosaurs are characteristic elements of Late Cretaceous European vertebrate faunas and were previously collected from lower Campanian to Maastrichtian continental deposits.
Weishampel, D. B., Edina Prondvai (133973), Weishampel, DB, Ősi, A, Weishampel, David B., Prondvai, Edina; id_orcid, Butler, Richard, Ősi, Attila, Weishampel, David, David B. Weishampel (133978), Richard Butler (133975), Richard Butler, Prondvai, Edina, Butler, R, Attila Ősi, David B Weishampel, Edina Prondvai, Butler, R. J., Prondvai, E, Butler, Richard; id_orcid, Attila Ősi (109378)   +20 more
core   +1 more source

Taxonomic Status of Nanotyrannus lancensis (Dinosauria: Tyrannosauroidea)—A Distinct Taxon of Small-Bodied Tyrannosaur

Fossil Studies
Tyrannosaurs are among the most intensively studied and best-known dinosaurs. Despite this, their relationships and systematics are highly controversial.
N. Longrich, E. Saitta
semanticscholar   +1 more source

Descripción de las vértebras cervicales de Galvesaurus herreroi Barco, Canudo, Cuenca-bescos & Ruiz-Omeñaca, 2005 (Dinosauria, Sauropoda) del tránsito Jurásico-Cretácico en Galve (Teruel, Aragón, España)

, 2021
En este trabajo se describen en detalle las vértebras y costillas cervicales del dinosaurio saurópodo Galvesaurus herreroi. El ejemplar proviene de la Formación Villar del Arzobispo (Titónico-Berriasiense medio?) de Galve (Sistema Ibérico, Teruel, Aragón,
José Raúl Rodríguez Rodríguez, José Ignacio Canudo Sanagustín, G. Bescós   +2 more
semanticscholar   +1 more source

The axial skeleton of Bagualia alba (Dinosauria: Eusauropoda) from the Early Jurassic of Patagonia

Palaeontologia Electronica, 2021
Sauropod dinosaurs were the dominant large-bodied herbivores in many Mesozoic terrestrial ecosystems. Such predominance took place after a faunal replacement event linked to a global environmental change during the Early Jurassic (Pliensbachian–Toarcian),
K. Gomez, J. Carballido, D. Pol
semanticscholar   +1 more source

A new dromaeosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia, China

, 2010
We describe a new dromaeosaurid theropod from the Upper Cretaceous Wulansuhai Formation of Bayan Mandahu, Inner Mongolia. The new taxon, Linheraptor exquisitus gen. et sp.
Tan, Q., Sullivan, C., Xu, X., Sullivan, Corwin, Norell, Mark A., Tan, Lin, Clark, JM, Xiao, D., Choiniere, Jonah N., Pittman, M.D., Tan, L, Pittman, Michael, Tan, Qingwei, Choiniere, J.N., Sullivan, C, Tan, Q, Hone, D.W.E., Hone, David W. E., Tan, L., Hone, DWE, Norell, MA, Li, Z., Li, Zhiquan, Xu, X, Xiao, D, Pittman, M, Clark, J.M., Choiniere, JN, Li, Z, Clark, James M., Xu, Xing, Xiao, Dong, Norrell, M.A.   +32 more
core   +1 more source

Macroevolutionary trends in the Dinosauria: Cope's rule [PDF]

Journal of Evolutionary Biology, 2005
AbstractCope's rule is the tendency for body size to increase over time along a lineage. A set of 65 phylogenetically independent comparisons, between earlier and later genera, show that Cope's rule applied in dinosaurs: later genera were on average about 25% longer than the related earlier genera to which they were compared.
D W E, Hone, T M, Keesey, D, Pisani, A, Purvis   +3 more
openaire   +2 more sources

Osteological redescription of the holotype of Plateosaurus trossingensis (Dinosauria: Sauropodomorpha) from the Upper Triassic of SW Germany and its phylogenetic implications

Journal of Systematic Palaeontology
Plateosaurus von Meyer, 1837, from the Norian of central Europe, was one of the first named dinosaurs. With close to 200 referred specimens found all over central Europe, it is one of the best-known dinosaurs from Europe.
Joep Schaeffer
semanticscholar   +1 more source

A new basal hadrosaurid (Dinosauria: Ornithischia) from the latest Cretaceous Kita-ama Formation in Japan implies the origin of hadrosaurids

Scientific Reports, 2021
Here we describe a partial hadrosaurid skeleton from the marine Maastrichtian Kita-ama Formation in Japan as a new taxon, Yamatosaurus izanagii gen. et sp. nov., based on unique characters in the dentition.
Y. Kobayashi, R. Takasaki, K. Kubota, A. Fiorillo   +3 more
semanticscholar   +1 more source

Abelisauroidea (Theropoda, Dinosauria) from Africa: a review of the fossil record [PDF]

, 2023
Souza-Júnior, André Luis de, Candeiro, Carlos Roberto dos Anjos, Vidal, Luciano da Silva, Brusatte, Stephen Louis, Mortimer, Mickey (2023): Abelisauroidea (Theropoda, Dinosauria) from Africa: a review of the fossil record.
de Souza-Júnior, André Luis, Candeiro, Carlos Roberto dos Anjos, Candeiro, Carlos Roberto, Brusatte, Stephen Louis; id_orcid, da Silva Vidal, Luciano, Souza-Júnior, André Luis de, Vidal, Luciano da Silva, dos Anjos Candeiro, Carlos Roberto, Mortimer, Mickey, Brusatte, Stephen Louis   +9 more
core   +1 more source