Results 1 to 10 of about 126 (80)

First Ornithomimid (Theropoda, Ornithomimosauria) from the Upper Cretaceous Djadokhta Formation of Tögrögiin Shiree, Mongolia [PDF]

open access: yesScientific Reports, 2017
The Upper Cretaceous Djadokhta Formation has been intensively surveyed for its fossil vertebrate fauna for nearly a century. Amongst other theropods, dromaeosaurids and parvicursorines are common in the formation, but ornithomimosaurs are extremely rare.
Tsogtbaatar Chinzorig   +1 more
exaly   +6 more sources

Vertebral Pneumaticity in the Ornithomimosaur Archaeornithomimus (Dinosauria: Theropoda) Revealed by Computed Tomography Imaging and Reappraisal of Axial Pneumaticity in Ornithomimosauria [PDF]

open access: yesPLoS ONE, 2015
Among extant vertebrates, pneumatization of postcranial bones is unique to birds, with few known exceptions in other groups. Through reduction in bone mass, this feature is thought to benefit flight capacity in modern birds, but its prevalence in non ...
Akinobu Watanabe   +2 more
exaly   +7 more sources

New theropod dinosaur from the Lower Cretaceous of Japan provides critical implications for the early evolution of ornithomimosaurs [PDF]

open access: yesScientific Reports, 2023
Ornithomimosauria consists of the ostrich-mimic dinosaurs, most of which showing cursorial adaptations, that often exhibit features indicative of herbivory.
Soki Hattori   +5 more
doaj   +2 more sources

New data on the distal tarsals in Ornithomimidae [PDF]

open access: yesActa Palaeontologica Polonica, 2021
The ankle in non-avian theropod dinosaurs consists of the astragalus and calcaneum proximally and a distal series of tarsal bones capping the metatarsals.
RACHEL E. NOTTRODT, ANDREW A. FARKE
doaj   +2 more sources

Author Correction: First Ornithomimid (Theropoda, Ornithomimosauria) from the Upper Cretaceous Djadokhta Formation of Tögrögiin Shiree, Mongolia. [PDF]

open access: yesSci Rep, 2020
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Chinzorig T   +5 more
europepmc   +4 more sources

Cranial muscle reconstructions quantify adaptation for high bite forces in Oviraptorosauria [PDF]

open access: yesScientific Reports, 2022
Oviraptorosaurians are an unusual and probably herbivorous group of theropod dinosaurs that evolved pneumatised crania with robust, toothless jaws, apparently adapted for producing a strong bite.
Luke E. Meade, Waisum Ma
doaj   +2 more sources

THE DIET OF OSTRICH DINOSAURS (THEROPODA: ORNITHOMIMOSAURIA) [PDF]

open access: yesPalaeontology, 2005
:  The diets of ornithomimosaurian dinosaurs (Theropoda: Ornithomimosauria) have proved to be contentious owing to a dearth of unambiguous evidence in support of carnivory, omnivory or herbivory. Re-assessment of anatomical, taphonomical and palaeoecological evidence, and estimates of daily minimal energy budgets for two derived ornithomimosaurian ...
Paul M. Barrett
exaly   +2 more sources

Assesment and interpretation of negative forelimb allometry in the evolution of non-avian Theropoda [PDF]

open access: yesFrontiers in Zoology, 2019
Background The origin of birds is marked by a significant decrease in body size along with an increase in relative forelimb size. However, before the evolution of flight, both traits may have already been related: It has been proposed that an ...
José A. Palma Liberona   +3 more
doaj   +2 more sources

On the finding of ornithomimid dinosaurs (Saurischia, Ornithomimosauria) in the Upper Cretaceous beds of Tajikistan

open access: yesPaleontological Journal, 2006
Averianov, Alexander O., Multituberculata, J. David Archibald (2006): On the finding of ornithomimid dinosaurs (Saurischia, Ornithomimosauria) in the Upper Cretaceous beds of Tajikistan.
Alexander O. Averianov, V R Alifanov
exaly   +2 more sources

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

open access: yesPLoS 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   +3 more
doaj   +2 more sources

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