Results 31 to 40 of about 90 (58)

New ichnological record from the late campanian Toro Toro Formation at Toro Toro, Potosí (Bolivia): first probable dromaeosaurid tracks from South America [PDF]

open access: yes, 2011
Fil: Apesteguía, Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.Fil: de Valais, Silvina. Universidad Nacional de Rio Negro. Instituto de Investigaciones en Paleobiologia y Geologia. Río Negro, Argentina.Fil:
Apesteguía, Sebastián   +3 more
core  

Revision of the Deinonychosauria (Dinosauria, Theropoda) from Argentina: anatomy and phylogeny [PDF]

open access: yes, 2014
Deinonychosauria es un grupo de dinosaurios terópodos celurosaurios, con un dígito pedal II concapacidad de hiperextensión, entre otros rasgos. Los registros son mayormente del hemisferionorte, aunque también existen registros del hemisferio sur.
Gianechini, Federico Abel
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The Impact of Unstable Taxa in Coelurosaurian Phylogeny and Resampling Support Measures for Parsimony Analyses [PDF]

open access: yes, 2020
Paleontological datasets often have large amounts of missing entries that result in multiple mostparsimonious trees. Highly incomplete and conflictive taxa produce a collapsed strict consensus andseveral methods have been developed for identifying these ...
Goloboff, Pablo Augusto, Pol, Diego
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Paravian phylogeny and the dinosaur-bird transition: An overview [PDF]

open access: yes, 2019
Recent years witnessed the discovery of a great diversity of early birds as well as closely related non-avian theropods, which modified previous conceptions about the origin of birds and their flight. We here present a review of the taxonomic composition
Agnolin, Federico   +4 more
core   +1 more source

Esfenodontes (Reptilia: lepidosauria) del Cretácico Superior de Patagonia : Anatomía y filogenia [PDF]

open access: yes, 2008
El presente trabajo de tesis tiene como objetivo principal el estudio de los lepidosaurios esfenodóntidos que habitaron la Patagonia argentina durante el Cretácico Superior, con especial interés en el eilenodontino “Priosphenodon” avelasi, el mayor y más
Apesteguía, Sebastián
core   +4 more sources

Los Alvarezsauridae (Dinosauria, Theropoda, Coelurosauria) de América del Sur: anatomía y relaciones filogenética. [PDF]

open access: yes, 2022
Fil: Meso, Jorge Gustavo. Universidad Nacional de Río Negro. Doctorado Meción Ciencias de la Tierra. Río Negro. Argentina.This Doctoral Thesis presents an exhaustive review of the Patagonian alvarezsaurids (Dinosauria, Theropoda).
Meso, Jorge Gustavo
core   +2 more sources

Reevaluating Maniraptoran Pelvic Musculature: Cursoriality, Convergence, and Caudal Decoupling [PDF]

open access: yes, 2019
Maniraptora is a clade of non-avian theropod dinosaurs comprising avians and several “bird-like” groups with semilunate wrist bones. Maniraptorans tend to exhibit anterior migration in centre of mass, enlargement of the pectoral region, and progressive ...
Rhodes, Matthew M
core   +2 more sources

Novos registros de vertebrados fósseis do cretáceo superior na formação adamantina (grupo Bauru), sudeste do Brasil [PDF]

open access: yes, 2014
The Adamantina Formation (Bauru Group), between Lucélia and Irapuru municipalities (northwestern São Paulo State, southeastern Brazil), has been in the last years a very important area for collecting Upper Cretaceous fossil vertebrates.
Bertini, Reinaldo José   +1 more
core   +1 more source

The teeth of the unenlagiine theropod Buitreraptor from the Cretaceous of Patagonia, Argentina, and the unusual dentition of the Gondwanan dromaeosaurids [PDF]

open access: yes, 2011
The Unenlagiinae is a clade of Gondwanan dromaeosaurid theropods mainly known from incomplete skeletal material. The group includes two recently discovered theropods, Buitreraptor and Austroraptor, from which cranial remains are available with in situ ...
Apesteguia, S.   +2 more
core   +1 more source

Evolution of Teeth and Quadrate in Non-avian Theropoda (Dinosauria: Saurischia), with the Description of Torvosaurus Remains from Portugal [PDF]

open access: yes, 2015
Theropods form a highly successful and morphologically diversified group of dinosaurs that gave rise to birds. They include most, if not all, carnivorous dinosaurs, yet many theropod clades were secondarily adapted to piscivory, omnivory and herbivory ...
Hendrickx, Christophe
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