Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy [PDF]
, 2016 General comparisons of the manual elements of megaraptorid theropods are conducted with the aim to enlarge the morphological dataset of phylogenetically useful features within Tetanurae.
Agnolin, Federico +2 more
core +1 more source
Frontiers in Ecology and Evolution, 2016 .– Background: Explanations for asymmetric patterns of diversification continue to challenge paleontologists and neontologists with competing hypotheses within genetic-development and ecological frameworks. In 1988, a hypothesis was proposed that tied a
Brian I Crother +2 more
doaj +1 more source
Bird-like anatomy, posture, and behavior revealed by an early jurassic theropod dinosaur resting trace. [PDF]
PLoS 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
Using step width to compare locomotor biomechanics between extinct, non-avian theropod dinosaurs and modern obligate bipeds [PDF]
, 2017 How extinct, non-avian theropod dinosaurs locomoted is a subject of considerable interest, as is the manner in which it evolved on the line leading to birds. Fossil footprints provide the most direct evidence for answering these questions. In this study,
Barrett, R S +10 more
core +1 more source
Osteology of the unenlagiid theropod Neuquenraptor argentinus from the Late Cretaceous of Patagonia [PDF]
, 2017 Neuquenraptor argentinus was described as the first undoubted deinonychosaurian theropod from Gondwana. The only known specimen is represented by a fragmentary skeleton, including a nearly complete foot, coming from Late Cretaceous beds of Neuquén ...
Agnolin, Federico +3 more
core +8 more sources
Growth dynamics of Australia's polar dinosaurs. [PDF]
PLoS ONE, 2011 Analysis of bone microstructure in ornithopod and theropod dinosaurs from Victoria, Australia, documents ontogenetic changes, providing insight into the dinosaurs' successful habitation of Cretaceous Antarctic environments.
Holly N Woodward +3 more
doaj +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]
, 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
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Reanalysis of Wupus agilis (Early Cretaceous) of Chongqing, China as a Large Avian Trace: Differentiating between Large Bird and Small Non-Avian Theropod Tracks. [PDF]
PLoS ONE, 2015 Trace fossils provide the only records of Early Cretaceous birds from many parts of the world. The identification of traces from large avian track-makers is made difficult given their overall similarity in size and tridactyly in comparison with traces of
Lida Xing +7 more
doaj +1 more source
A new two-fingered dinosaur sheds light on the radiation of Oviraptorosauria [PDF]
Royal Society Open Science, 2020 Late Cretaceous trends in Asian dinosaur diversity are poorly understood, but recent discoveries have documented a radiation of oviraptorosaur theropods in China and Mongolia.
Gregory F. Funston +5 more
doaj +1 more source
The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi [PDF]
, 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