Results 81 to 90 of about 1,610 (221)

A new taxon of saurischian dinosaur from the Coelophysis Quarry of New Mexico, USA (Triassic: latest Norian or Rhaetian) highlights herrerasaurian diversity in the latest Triassic

open access: yesPapers in Palaeontology, Volume 12, Issue 2, March/April 2026.
Abstract The most complete record of the earliest dinosaur lineages is from the Carnian from the higher latitudes of Pangea (e.g. present‐day Brazil, Argentina), but dinosaurian assemblages from the upper stages of the Upper Triassic are better known from the low latitudes of Pangea (present day southwestern USA).
Simba Srivastava, Sterling J. Nesbitt
wiley   +1 more source

The wings before the bird: an evaluation of flapping-based locomotory hypotheses in bird antecedents [PDF]

open access: yesPeerJ, 2016
Background: Powered flight is implicated as a major driver for the success of birds. Here we examine the effectiveness of three hypothesized pathways for the evolution of the flight stroke, the forelimb motion that powers aerial locomotion, in a ...
T. Alexander Dececchi   +2 more
doaj   +2 more sources

FIG. 35 in A new carcharodontosaurid (Dinosauria, Theropoda) from the Upper Cretaceous of Argentina

open access: yes, 2006
FIG. 35. — Cladogram depicting the strict consensus tree obtained from the phylogenetic analysis.Published as part of Coria, R. A. & Currie, P. J., 2006, A new carcharodontosaurid (Dinosauria, Theropoda) from the Upper Cretaceous of Argentina, pp. 71-118
Coria, R. A., Currie, P. J.
core   +1 more source

Figure 2 in Abelisauroidea (Theropoda, Dinosauria) from Africa: a review of the fossil record

open access: yes, 2023
Figure 2. Map of the Continental Africa and Arabian Peninsula and the African countries that have abelisaur records.Published as part of Souza-Júnior, André Luis de, Candeiro, Carlos Roberto dos Anjos, Vidal, Luciano da Silva, Brusatte, Stephen Louis ...
Candeiro, Carlos Roberto dos Anjos   +4 more
core   +1 more source

The first juvenile dromaeosaurid (Dinosauria: Theropoda) from Arctic Alaska.

open access: yesPLoS ONE, 2020
Compared to the osteological record of herbivorous dinosaurs from the Late Cretaceous Prince Creek Formation of northern Alaska, there are relatively fewer remains of theropods.
Alfio Alessandro Chiarenza   +5 more
doaj   +1 more source

Lower rotational inertia and larger leg muscles indicate more rapid turns in tyrannosaurids than in other large theropods [PDF]

open access: yesPeerJ, 2019
Synopsis Tyrannosaurid dinosaurs had large preserved leg muscle attachments and low rotational inertia relative to their body mass, indicating that they could turn more quickly than other large theropods.
Eric Snively   +11 more
doaj   +2 more sources

Braincase anatomy and palaeoneurology of Venetoraptor gassenae, a lagerpetid pterosauromorph from the Late Triassic of southern Brazil

open access: yesPalaeontology, Volume 69, Issue 2, 2026.
Abstract There is a growing consensus that pterosaurs and the flightless Lagerpetidae are closely related. This relationship is supported by apomorphies throughout the skeleton, including endocranial character states such as a well‐developed floccular fossa and a tall anterior semicircular canal. Our knowledge of lagerpetid anatomy has been improved by
Lísie V.S. Damke   +6 more
wiley   +1 more source

Caracterización de una relación alométrica en Theropoda (dinosauria) con énfasis en su extensión e implicaciones evolutivas [PDF]

open access: yes, 2018
Tesis entregada a la Universidad de Chile en cumplimiento parcial de los requisitos para optar al grado de Magíster en Ciencias Biológicas.El origen del vuelo en Aves está marcado tanto por disminuciones significativas en tamaño corporal como por el ...
Palma Liberona, José Antonio
core  

Functional morphology of neck musculature in the Tyrannosauridae (Dinosauria, Theropoda) as determined via a hierarchical inferential approach

open access: yes, 2007
Eric Snively, Anthony P. Russell (2007): Functional morphology of neck musculature in the Tyrannosauridae (Dinosauria, Theropoda) as determined via a hierarchical inferential approach. Zoological Journal of the Linnean Society 151, No.
Russell, Anthony P.   +3 more
core   +1 more source

Tunasniyoj, a dinosaur tracksite from the Jurassic-Cretaceous boundary of Bolivia

open access: yesAnais da Academia Brasileira de Ciências, 2011
Here we report a superbly preserved and profusely represented five-ichnotaxa dinosaur track assemblage near Icla village, 100 km southeast of Sucre, Bolivia.
Sebastián Apesteguía, Pablo A. Gallina
doaj   +1 more source

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