Results 41 to 50 of about 4,665 (222)

REVIEW OF THE DINOSAUR RECORD FROM IRAN WITH THE DESCRIPTION OF NEW MATERIAL

Rivista Italiana di Paleontologia e Stratigrafia, 2012
The dinosaur record from Iran includes footprints from the Liassic Ab-e-Haji Formation of Neizar Valley (Kerman Province, central-eastern Iran), a single footprint from the Javaherdeh Formation near Zerab (Alborz Mounts, NE Iran), and skeletal remains ...
ALEXANDER W. A. KELLNER, FABIO MARCO DALLA VECCHIA, MAJID MIRZAIE ATAABADI, HELDER DE PAULA SILVA, ERFAN KHOSRAVI   +4 more
doaj   +1 more source

A new large−bodied theropod dinosaur from the Middle Jurassic of Warwickshire, United Kingdom [PDF]

Previously undocumented postcranial material from the Chipping Norton Limestone Formation (Middle Jurassic: Lower Bathonian) of Cross Hands Quarry, near Little Compton, Warwickshire represents a new large−bodied theropod dinosaur,distinct from the ...
Benson, R. B. J., Jonathan, D.
core   +1 more source

The anatomy and systematic position of the theropod dinosaur Chilantaisaurus tashuikouensis Hu, 1964 from the Early Cretaceous of Alanshan, People's Republic of China [PDF]

There is little consensus on the systematic position of the colossal theropod dinosaur Chilantaisaurus tashuikouensis from the Cretaceous (Aptian–?Albian or Upper Cretaceous) Ulansuhai Formation of Inner Mongolia, which has been recovered as a derived ...
Benson, R. B. J., Xing, Xu
core   +1 more source

Cretaceous dinosaur tracks in the Brenton Formation, Western Cape

South African Journal of Science
Dinosaur tracks, probably aged ~132 Ma, have been identified in South Africa’s Western Cape Province, where they occur within the Brenton Formation of the Cretaceous Uitenhage Group.
Charles W. Helm, Mark G. Dixon, Willo M. Stear, Fred Van Berkel   +3 more
doaj   +1 more source

The first theropod tracks from the Middle Jurassic of Gansu, Northwest China: new and rare evidence of quadrupedal progression in theropod dinosaurs

Journal of Palaeogeography, 2019
A new Middle Jurassic tracksite dominated by non-avian theropod footprints from the Wangjiashan Formation in Pingchuan District, Baojishan Basin, Gansu Province has yielded a unique trackway with four consecutive manus-pes sets.
Da-Qing Li, Li-Da Xing, Martin G. Lockley, Anthony Romilio, Jing-Tao Yang, Long-Feng Li   +5 more
doaj   +1 more source

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

The Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison, James Gregory, Christopher Jackson, Jordan Bestwick, Katlin Schroeder, Samuel J.L. Gascoigne, Paul Bills, Laura B. Porro, Philip D. Mannion, Paul M. Barrett   +9 more
wiley   +1 more source

Walking like dinosaurs: chickens with artificial tails provide clues about non-avian theropod locomotion.

PLoS ONE, 2014
Birds still share many traits with their dinosaur ancestors, making them the best living group to reconstruct certain aspects of non-avian theropod biology.
Bruno Grossi, José Iriarte-Díaz, Omar Larach, Mauricio Canals, Rodrigo A Vásquez   +4 more
doaj   +1 more source

Extreme Ontogenetic Changes in a Ceratosaurian Theropod [PDF]

Current Biology, 2017
Ontogenetic variation is documented within many dinosaur species, but extreme ontogenetic changes are rare among dinosaurs, particularly among theropods. Here, we analyze 19 specimens of the Jurassic ceratosaurian theropod Limusaurus inextricabilis, representing six ontogenetic stages based on body size and histological data.
Wang, Shuo, Stiegler, Josef, Amiot, Romain, Wang, Xu, Du, Guo-Hao, Clark, James M., Xu, Xing   +6 more
openaire   +4 more sources

Elliptic Fourier analysis as a tool for the taxonomic identification of isolated theropod pedal phalanges

The Anatomical Record, EarlyView.
Abstract Studies of Upper Cretaceous deposits in North America have provided invaluable insights into the continental ecosystems of this time. Theropod (Saurischia, Dinosauria) pedal phalanges are commonplace in these deposits but can be difficult to identify at a finer taxonomic resolution.
Trystan M. Warnock‐Juteau, Stephanie M. Smith, Thomas M. Cullen   +2 more
wiley   +1 more source

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source