Results 61 to 70 of about 287 (148)

A proxy for brain‐to‐endocranial cavity index in non‐neornithean dinosaurs and other extinct archosaurs

Journal of Comparative Neurology, Volume 532, Issue 3, March 2024.
Illustration of the endocranial doming, which can provide a proxy for the brain‐to‐endocranial cavity index, using the endocast of an adult of the iguanodont dinosaur Proa valdearinnoensis as an example. Abstract Although the brain fills nearly the entire cranial cavity in birds, it can occupy a small portion of it in crocodilians.
Fabien Knoll, Asato Ishikawa, Soichiro Kawabe   +2 more
wiley   +1 more source

Nuevos restos de dinosaurios (Titanosauria y Ornithopoda) en el Cretácico superior de las cuencas de Tremp y Dellà (Lleida, España)

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, J. V. Santafé-Llopis, J. L. Sanz, J. E. Powell   +3 more
doaj   +1 more source

Anatomy, taphonomy, and phylogenetic implications of a new specimen of Eolambia caroljonesa (Dinosauria: Ornithopoda) from the Cedar Mountain Formation, Utah, USA.

PLoS ONE, 2017
BackgroundEolambia caroljonesa is the most abundant dinosaur in the lower Cenomanian Mussentuchit Member of the Cedar Mountain Formation of Utah, and one of the most completely known non-hadrosaurid iguanodontians from North America.
Andrew T McDonald, Terry A Gates, Lindsay E Zanno, Peter J Makovicky   +3 more
doaj   +1 more source

Presence of diminutive hadrosaurids (Dinosauria: Ornithopoda) from the Maastrichtian of the south-central Pyrenees (Spain)

Journal of Iberian Geology, 2015
En los últimos años se ha descrito una rica y diversa fauna de dinosaurios hadrosáuridos en el Cretácico Superior de los Pirineos. El reciente trabajo de campo realizado en los niveles del Maastrichtiano superior de la Formación Tremp, en el Pirineo centro-sur (provincia de Huesca, noreste de España), nos ha permitido recuperar diminutos huesos fósiles
Julio Company, Penélope Cruzado‐Caballero, José Ignacio Canudo   +2 more
openaire   +4 more sources

First dinosaur (Ornithopoda) from Early Cretaceous (Albian) of Oregon, U.S.A.

Journal of Vertebrate Paleontology, 2018
SUPPLEMENTAL DATA—Supplemental materials are available for this article for free at www.tandfonline.com/UJVP Citation for this article: Retallack, G. J., J. M. Theodor, E. B. Davis, S. S. B. Hopkins, and P. Z. Barrett. 2018. First dinosaur (Ornithopoda) from Early Cretaceous (Albian) of Oregon, U.S.A. Journal of Vertebrate Paleontology.
Retallack, Gregory J., Theodor, Jessica M., Davis, Edward B., Hopkins, Samantha S. B., Barrett, Paul Z.   +4 more
openaire   +1 more source

ORNITÓPODOS BASALES DEL CENTRO-SUR DE CHUBUT, PATAGONIA CENTRAL: CONSIDERACIONES EVOLUTIVAS, PALEOHISTOLÓGICAS Y PALEOAMBIENTALES

Publicación Electrónica de la Asociación Paleontológica Argentina
En el centro-sur de la Provincia de Chubut se exponen excelentes afloramientos de rocas sedimentarias de edad cretácica que conforman el principal relleno de la cuenca del Golfo San Jorge.
Lucio Manuel Ibiricu, Ignacio Alejandro Cerda, Julieta Lucia Caglianone, Noelia Victoria Cardozo, Bruno Nicolás Alvarez, Sol Aldana Cavasin, Gabriel Andrés Casal   +6 more
doaj   +1 more source

UNRAVELLING ORNITHOPOD DIVERSITY IN THE LATE JURASSIC COASTAL ECOSYSTEMS OF EASTERN IBERIA (SPAIN)

Rivista Italiana di Paleontologia e Stratigrafia
Ornithopod osteological fossils from the Upper Jurassic of Europe are relatively scarce and often fragmentary compared to those of other dinosaurian groups. Recent discoveries, particularly from the Iberian Peninsula, have increased our understanding of
Sergio Sánchez-Fenollosa, FRANCISCO J. VERDÚ, MAITE SUÑER, ALBERTO COBOS   +3 more
doaj   +1 more source

A new hadrosauroid (Dinosauria: Ornithopoda) from the Allen Formation (Late Cretaceous) of Patagonia, Argentina

Revista del Museo Argentino de Ciencias Naturales, 2010
A new hadrosauroid taxon from the Late Cretaceous Allen Formation is erected, on the basis of abundant cranial and postcranial material from the Salitral Moreno locality of the Rio Negro Province, Argentina.
Rubén D. Juárez Valieri, José A. Haro, Lucas E. Fiorelli, Jorge O. Calvo   +3 more
doaj  

Systematic of a Massively Constructed Specimen of Iguanodon galvensis (Ornithopoda, Iguanodontidae) from the Early Barremian (Early Cretaceous) of Eastern Spain

Diversity
Styracosternan ornithopods are plenty abundant in the Lower Cretaceous fossil record of Europe. In particular, Iguanodon, the second genus of dinosaurs described worldwide, has been found in UK, Belgium, France, Germany, and Spain, evidencing a wide ...
Josué García-Cobeña, Francisco J. Verdú, Alberto Cobos   +2 more
doaj   +1 more source

The phylogenetic nomenclature of ornithischian dinosaurs. [PDF]

PeerJ, 2021
Madzia D, Arbour VM, Boyd CA, Farke AA, Cruzado-Caballero P, Evans DC.   +5 more
europepmc   +1 more source