Results 21 to 30 of about 261 (112)

Theropod fauna from southern Australia indicates high polar diversity and climate-driven dinosaur provinciality.

PLoS ONE, 2012
The Early Cretaceous fauna of Victoria, Australia, provides unique data on the composition of high latitude southern hemisphere dinosaurs. We describe and review theropod dinosaur postcranial remains from the Aptian-Albian Otway and Strzelecki groups ...
Roger B J Benson, Thomas H Rich, Patricia Vickers-Rich, Mike Hall   +3 more
doaj   +1 more source

Node height test for early burst of rates of dinosaur body mass evolution.

, 2014
(A) Nodal evolutionary rate estimates (standardised independent contrasts [39],[89]) versus node age for data excluding (dashed lowess line) and including (solid lowess line) Maniraptora.
Matthew T. Carrano (560052), David C. Evans (203487), Roger B. J. Benson (176910), Corwin Sullivan (344770), Nicolás E. Campione (203477), Philip D. Mannion (156289), Paul Upchurch (156283)   +6 more
core   +1 more source

A Thick-Skulled Troodontid Theropod from the Late Cretaceous of Mexico

Diversity
Dinosaurs repeatedly evolved adaptations for sexual selection over their 150-million year history, including adaptations for display and intraspecific combat.
Hector E. Rivera-Sylva, Martha C. Aguillón-Martinez, Jose Flores-Ventura, Ivan E. Sánchez-Uribe, Jose Ruben Guzman-Gutierrez, Nicholas R. Longrich   +5 more
doaj   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

Biological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan, Case Vincent Miller, Michael Pittman   +2 more
wiley   +1 more source

Inferred presence of extraoral tissues in Triassic archosauromorphs and the evolutionary implications for the clade Sauropsida

Palaeontology, Volume 69, Issue 3, 2026.
Abstract Recent work has suggested that the presence of extraoral soft tissues (‘lips’), in the form of labial scales in theropod dinosaurs, could be inferred based on: anteroposteriorly distributed foramina in the rostral bones, similar to extant lepidosaurs; vertically projected teeth; uniform enamel thickness in maxillary teeth; and an allometric ...
Rafael Terras, Jaqueline Borger, Manuelle O. P. Almeida, Silvia Bettin, Owen A. Higgins, Giulia Marciani, Stefano Benazzi, Rodrigo T. Müller, Leonardo Kerber, Mirian Carbonera   +9 more
wiley   +1 more source

Theropod dinosaur diversity of the lower English Wealden: analysis of a tooth‐based fauna from the Wadhurst Clay Formation (Lower Cretaceous: Valanginian) via phylogenetic, discriminant and machine learning methods

Papers in Palaeontology, Volume 10, Issue 6, November/December 2024.
Abstract The Lower Cretaceous Wealden Supergroup of southern England yields a diverse assemblage of theropod dinosaurs, its taxa being represented by fragments in addition to some of the most informative associated skeletons of the European Mesozoic. Spinosaurids, neovenatorid allosauroids, tyrannosauroids and dromaeosaurids are among reported Wealden ...
Chris T. Barker, Lucy Handford, Darren Naish, Simon Wills, Christophe Hendrickx, Phil Hadland, Dave Brockhurst, Neil J. Gostling   +7 more
wiley   +1 more source

Theropod dinosaur teeth from the lowermost Cretaceous Rabekke Formation on Bornholm, Denmark

, 2008
The dinosaur fauna of the palynologically dated lower Berriasian Skyttegard Member of the Rabekke Formation on the Baltic island of Bornholm, Denmark, is represented by isolated tooth crowns.
Lindström, Sofie,, Currie, Philip J, Rees, Jan, Lindström, Sofie, Alwmark, Carl, Siverson, Mikael, Alwmark, Carl,, Lund University., Lindgren, Johan, Lindgren, Johan,   +9 more
core   +1 more source

Reconstruction of the pelvic girdle and hindlimb musculature of the early tetanurans Piatnitzkysauridae (Theropoda, Megalosauroidea)

Journal of Anatomy, Volume 244, Issue 4, Page 557-593, April 2024.
Piatnitzkysauridae were Jurassic theropods that represented one of the earliest lineages to have evolved moderate body size. Here, we reconstructed the hindlimb musculature of this clade, allowing a more complete understanding of myological evolution in theropod pelvic appendages. Abstract Piatnitzkysauridae were Jurassic theropods that represented the
Mauro B. S. Lacerda, Jonathas S. Bittencourt, John R. Hutchinson   +2 more
wiley   +1 more source

Data from: Evolutionary changes in pubic orientation in dinosaurs are more strongly correlated with the ventilation system than with herbivory

, 2018
Among dinosaurs, the pubis has convergently retroverted four times in Maniraptora (Theropoda) and once in Ornithischia. Although a clear correlation has not been demonstrated, it has been previously proposed that two traits were related to pubic ...
Tschopp, E., Macaluso, Loredana, Loredana Macaluso, Macaluso, L., Tschopp, Emanuel, Emanuel Tschopp   +5 more
core   +1 more source

Paleobiodiversidad de dinosaurios terópodos en el Barremiense Inferior (Cretácico Inferior) de La Cantalera (Josa, Teruel) [PDF]

, 2013
El registro fósil de dinosaurios terópodos es escaso en el Barremiense (Cretácico Inferior) de Europa. La excepción se encuentra en Inglaterra y España, en la Cordillera Ibérica.
Alonso Germán, Antonio, Canudo Sanagustín, José Ignacio   +1 more
core