Morphological Variations within the Ontogeny of Deinonychus antirrhopus (Theropoda, Dromaeosauridae)
This research resulted from the determination that MCZ 8791 is a specimen of Deinonychus antirrhopus between one and two years of age and that the morphological variations within particular growth stages of this taxon have yet to be described. The primary goal of the research is to identify ontogenetic variations in this taxon.
William L Parsons, Kristen M Parsons
openaire +4 more sources
Endocranial Morphology of the Extinct North American Lion (Panthera atrox) [PDF]
The extinct North American lion (Panthera atrox) is one of the largest felids (Mammalia, Carnivora) to have ever lived, and it is known from a plethora of incredibly well-preserved remains.
Cuff, A R, Goswami, A, Stockey, C
core +2 more sources
ABELISAURID PEDAL UNGUALS FROM THE LATE CRETACEOUS OF INDIA
The ungual phalanges of theropod dinosaurs discovered in the Lameta Formation (Maastrichtian), central India, exhibit distinctive characters unknown in other theropods.
Fernando E. Novas, Saswati Bandyopadhyay
doaj
Ichnological evidence of Megalosaurid Dinosaurs crossing Middle Jurassic tidal flats [PDF]
A new dinosaur tracksite in the Vale de Meios quarry (Serra de Aire Formation, Bathonian, Portugal) preserves more than 700 theropod tracks. They are organized in at least 80 unidirectional trackways arranged in a bimodal orientation pattern (W/NW and E ...
Castanera, D. +5 more
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TERRESTRIAL ECOSYSTEMS ON THE MESOZOIC PERI-ADRIATIC CARBONATE PLATFORMS: THE VERTEBRATE EVIDENCE
The remains of Mesozoic carbonate platforms outcrop along the margins of the Adriatic Sea and the mountain chains surrounding them in Italy, Slovenia and Croatia.
Fabio M. Dalla Vecchia
doaj
A Thick-Skulled Troodontid Theropod from the Late Cretaceous of Mexico
Dinosaurs repeatedly evolved adaptations for sexual selection over their 150-million year history, including adaptations for display and intraspecific combat.
Hector E. Rivera-Sylva +5 more
doaj +1 more source
Mid-mantle deformation inferred from seismic anisotropy [PDF]
With time, convective processes in the Earth's mantle will tend to align crystals, grains and inclusions. This mantle fabric is detectable seismologically, as it produces an anisotropy in material properties—in particular, a directional dependence in ...
A Yeganeh-Haeri +34 more
core +4 more sources
A re-evaluation of the enigmatic dinosauriform Caseosaurus crosbyensis from the Late Triassic of Texas, USA and its implications for early dinosaur evolution [PDF]
The holotype specimen of the Late Triassic dinosauriform Caseosaurus crosbyensis is redescribed and evaluated phylogenetically for the first time, providing new anatomical information and data on the earliest dinosaurs and their evolution within the ...
Baron, Matthew G., Williams, Megan
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Dinosaurs (Reptilia, Archosauria) at Museo de La Plata, Argentina: annotated catalogue of the type material and Antarctic specimens [PDF]
A commented-illustrated catalogue of non-avian dinosaurs housed at Museo de La Plata, Argentina is presented. This represents the first commented catalogue of the La Plata Museum dinosaurs to be published.
Otero, Alejandro +1 more
core +1 more source
A new theropod dinosaur from the Early Jurassic of South Africa and its implications for the early evolution of theropods [PDF]
A new theropod, Dracovenator regenti, from the upper Elliot Formation is described, based upon a fragmentary skull. It can be diagnosed on the basis of a bilobed fossa on the lateral surface of the premaxilla that is connected to the alveolar margin by ...
Yates, Adam M.
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