Results 21 to 30 of about 7,261 (219)

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+1 more source

The postcranial skeleton of Monolophosaurus jiangi (Dinosauria: Theropoda) from the Middle Jurassic of Xinjiang, China, and a review of Middle Jurassic Chinese theropods [PDF]

open access: yes, 2010
The Middle Jurassic was a critical time in the evolution of theropod dinosaurs, highlighted by the origination and radiation of the large-bodied and morphologically diverse Tetanurae.
ZHAO XI-JIN   +34 more
core   +1 more source

Perennial Lakes as an Environmental Control on Theropod Movement in the Jurassic of the Hartford Basin

open access: yesGeosciences, 2017
Eubrontes giganteus is a common ichnospecies of large dinosaur track in the Early Jurassic rocks of the Hartford and Deerfield basins in Connecticut and Massachusetts, USA.
Patrick R. Getty   +5 more
doaj   +1 more source

Two new compsognathid-like theropods show diversified predation strategies in theropod dinosaurs. [PDF]

open access: yesNatl Sci Rev
ABSTRACT The Compsognathidae was originally considered an early-diverging clade of coelurosaur theropods. However, recent study suggests that Compsognathidae is not monophyletic. Here, we describe two new compsognathid-like species, Sinosauropteryx lingyuanensis sp. nov. and Huadanosaurus sinensis gen. et sp. nov.
Qiu R, Wang X, Jiang S, Meng J, Zhou Z.
europepmc   +3 more sources

New record of Abelisauroid Theropods from the Bauru group (upper cretaceous), São Paulo State, Brazil [PDF]

open access: yes, 2014
Isolated bones of abelisauroid theropods from the Bauru Group (Late Cretaceous, Brazil), are described. They correspond to three individuals represented by fused ischia and part of the ilium, a partial axis, and a right fi bula, respectively. The fossils
Iori, Fabiano V.   +2 more
core   +1 more source

New evidence of feathers in the Crato Formation supporting a reappraisal on the presence of Aves

open access: yesAnais da Academia Brasileira de Ciências, 2011
The preservation of delicate structures such as feathers is very rare in the paleontological record, due to the fragility of their components. Fossil feathers have been reported from approximately 50 deposits around the world, from the Late Jurassic to ...
Juliana M. Sayão   +2 more
doaj   +1 more source

Bird-like anatomy, posture, and behavior revealed by an early jurassic theropod dinosaur resting trace. [PDF]

open access: yesPLoS ONE, 2009
BackgroundFossil tracks made by non-avian theropod dinosaurs commonly reflect the habitual bipedal stance retained in living birds. Only rarely-captured behaviors, such as crouching, might create impressions made by the hands.
Andrew R C Milner   +4 more
doaj   +1 more source

The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi [PDF]

open access: yes, 2015
A partial cranial endocast and right inner ear of the Cretaceous abelisaurid dinosaur Aucasaurus garridoi were digitally reconstructed from CT scans.
Paulina Carabajal, Ariana   +1 more
core   +1 more source

A methodology of theropod print replication utilising the pedal reconstruction of Australovenator and a simulated paleo-sediment [PDF]

open access: yesPeerJ, 2017
Distinguishing the difference between theropod and ornithopod footprints has proved a difficult task due to their similarities. Herein our aim was to produce a method where a skeleton could be more closely matched to actual fossilised footprints.
Matt A. White   +2 more
doaj   +2 more sources

Dinosaur footprints from the Duntulm Formation (Bathonian, Jurassic) of the Isle of Skye [PDF]

open access: yes, 2004
The first in situ dinosaur tracks from Scotland were discovered at the top of the Duntulm Formation (Bathonian, Jurassic) near to Staffin in northeastern Skye.
ANDERSON   +9 more
core   +1 more source

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