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Abstract We describe the osteology of the new small theropod dinosaur Masiakasaurus knopfleri, from the Late Cretaceous Maevarano Formation of northwestern Madagascar. Approximately 40% of theExpand
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Pelvic and hindlimb musculature of Tyrannosaurus rex (Dinosauria: Theropoda)
In this article, we develop a new reconstruction of the pelvic and hindlimb muscles of the large theropod dinosaur Tyrannosaurus rex. Our new reconstruction relies primarily on direct examination ofExpand
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Titanosaurs and the origin of wide-gauge trackways; a biomechanical and systematic perspective on sauropod locomotion
Two major ichnotypes of sauropod trackways have been described: "narrow-gauge," in which both manus and pes prints approach or intersect the trackway midline, and "wide-gauge," in which these printsExpand
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Locomotion in non-avian dinosaurs: integrating data from hindlimb kinematics, in vivo strains, and bone morphology
Analyses of non-avian dinosaur locomotion have been hampered by the lack of an appropriate locomotor analog among extant taxa. Birds, though members of the clade Dinosauria, have undergoneExpand
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Morphological indicators of foot posture in mammals: a statistical and biomechanical analysis
Mammalian foot posture has previously been described through the three-tiered hierarchy of plantigrady, digitigrady and unguligrady. This broadly applicable terminology has been used to categorizeExpand
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Homoplasy and the evolution of dinosaur locomotion
Abstract In this paper, I survey hindlimb and pelvic anatomy across non-avian dinosaurs and analyze these within a cladistic framework to quantify patterns of change within the locomotor apparatus.Expand
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Implications of limb bone scaling, curvature and eccentricity in mammals and non‐avian dinosaurs
Current theories of locomotor biomechanics are based largely on observations of extant terrestrial mammals. However, extant mammals are limited with respect to certain aspects of terrestrialExpand
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New materials of Masiakasaurus knopfleri Sampson, Carrano, and Forster, 2001, and implications for the morphology of the Noasauridae (Theropoda: Ceratosauria)
Smithsonian Contributions to Paleobiology, no. 95: viii + 53 pages, 26 figures, 3 tables. New materials of Masiakasaurus knopfleri Sampson, Carrano, and Forster, 2001, and implications for theExpand
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A bizarre predatory dinosaur from the Late Cretaceous of Madagascar
Here we report the discovery of a small-bodied (∼1.8 m) predatory dinosaur from the Late Cretaceous (Maastrichtian) of Madagascar. Masiakasaurus knopfleri, gen. et sp. nov., represented by severalExpand
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Morphological changes in pedal phalanges through ornithopod dinosaur evolution: A biomechanical approach
The evolution of ornithopod dinosaurs provides a well‐documented example of the transition from digitigrady to subunguligrady. During this transition, the ornithopod pes was drastically altered fromExpand
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