Results 71 to 80 of about 4,132 (266)

A new brachylophosaurin (Dinosauria: Hadrosauridae) from the Upper Cretaceous Menefee Formation of New Mexico

PeerJ, 2021
Brachylophosaurini is a clade of hadrosaurid dinosaurs from the Campanian of western North America. Although well-known from northern localities in Montana and Alberta, including abundant material of Brachylophosaurus canadensis and Maiasaura peeblesorum
A. McDonald, D. G. Wolfe, Elizabeth Freedman Fowler, Terry A Gates   +3 more
semanticscholar   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

A new oviraptorosaur (Dinosauria: Theropoda) from the end-Maastrichtian Hell Creek Formation of North America

PLoS ONE
Caenagnathidae is a clade of derived, Late Cretaceous oviraptorosaurian theropods from Asia and North America. Because their remains are rare and often fragmentary, caenagnathid diversity is poorly understood. Anzu wyliei is the only caenagnathid species
K. Atkins-Weltman, D. Simon, Holly Woodward, Gregory G. Funston, Eric Snively   +4 more
semanticscholar   +1 more source

A New Dromaeosaurid (Dinosauria: Coelurosauria) from Khulsan, Central Mongolia

American Museum Novitates, 2021
Dromaeosaurid theropods represent a rare but important clade of nonavialan dinosaurs. Their close evolutionary relationship to modern birds has placed them at the center of paleontological research for the last several decades.
James G. Napoli, Alexander A. Ruebenstahl, Bhart‐Anjan S. Bhullar, A. Turner, M. Norell   +4 more
semanticscholar   +1 more source

Body Size Distribution of the Dinosaurs [PDF]

, 2012
PMCID: PMC3526529This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
David W E Hone, Hone, DWE, O’Gorman Eoin J., Eoin J O'Gorman, Eoin J. O’Gorman, David W. E. Hone, Hone, David WE, O'Gorman, EJ, Hone David W. E., O’Gorman, Eoin J, O'Gorman, Eoin J., Hone, David W. E.   +11 more
core   +1 more source

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, EarlyView.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Anatomy and cranial functional morphology of the small-bodied dinosaur Fruitadens haagarorum from the Upper Jurassic of the USA. [PDF]

, 2012
Heterodontosaurids are an important but enigmatic and poorly understood early radiation of ornithischian dinosaurs. The late-surviving heterodontosaurid Fruitadens haagarorum from the Late Jurassic (early Tithonian) Morrison Formation of the western USA ...
Chiappe, Luis M., Galton, Peter M., Luis M Chiappe, Richard J. Butler (172299), Porro Laura B., Laura B. Porro (172305), Peter M. Galton (172311), Galton Peter M., Butler, Richard, Galton, Peter, Butler Richard J., Chiappe Luis M., Chiappe, Luis, Laura B Porro, Butler, Richard J.; id_orcid, Porro, Laura B, Butler, Richard J., Richard J Butler, Porro, Laura B., Peter M Galton, Luis M. Chiappe (158548)   +20 more
core   +1 more source

An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation

The Anatomical Record, EarlyView.
Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski, N. Adam Smith, Guinevere Rose Brown   +2 more
wiley   +1 more source

Cranial Anatomy of New Specimens of Saurornitholestes langstoni (Dinosauria, Theropoda, Dromaeosauridae) from the Dinosaur Park Formation (Campanian) of Alberta

The Anatomical Record, 2020
The holotype of the dromaeosaurid Saurornitholestes langstoni was described in 1978 on the basis of fewer than 30 associated cranial and postcranial bones of a single individual from Dinosaur Provincial Park.
P. Currie, David C Evans
semanticscholar   +1 more source

A re-examination of a Middle Jurassic sauropod limb bone from the Bathonian of the Isle of Skye [PDF]

, 2004
A limb bone from the Bathonian of the Isle of Skye, previously identified as a possible femur of the sauropod dinosaur <i>Cetiosaurus</i>, is reassessed in light of comparisons with other sauropod material, including the lectotype of <i>
Liston, J.J.
core   +1 more source