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A Late Triassic Dinosauromorph Assemblage from New Mexico and the Rise of Dinosaurs
It has generally been thought that the first dinosaurs quickly replaced more archaic Late Triassic faunas, either by outcompeting them or when the more archaic faunas suddenly became extinct. FossilsExpand
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LONG BONE HISTOLOGY OF THE HADROSAURID DINOSAUR MAIASAURA PEEBLESORUM: GROWTH DYNAMICS AND PHYSIOLOGY BASED ON AN ONTOGENETIC SERIES OF SKELETAL ELEMENTS
Abstract Ontogenetic changes in the bone histology of Maiasaura peeblesorum are revealed by six relatively distinct but gradational growth stages: early and late nestling, early and late juvenile,Expand
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The origin and early evolution of birds
Birds evolved from and are phylogenetically recognized as members of the theropod dinosaurs; their first known member is the Late Jurassic Archaeopteryx, now represented by seven skeletons and aExpand
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GROWTH IN SMALL DINOSAURS AND PTEROSAURS: THE EVOLUTION OF ARCHOSAURIAN GROWTH STRATEGIES
Abstract Histological evidence of the bones of pterosaurs and dinosaurs indicates that the typically large forms of these groups grew at rates more comparable to those of birds and mammals than toExpand
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The origin of birds and their flight.
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Variation in dinosaur skeletochronology indicators: implications for age assessment and physiology
Twelve different bones from the skeleton of the holotype specimen of the hadrosaurian dinosaur Hypacrosaurus stebingeri were thin-sectioned to evaluate the significance of lines of ar- rested growthExpand
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On the origin of high growth rates in archosaurs and their ancient relatives: Complementary histological studies on Triassic archosauriforms and the problem of a “phylogenetic signal” in bone
Abstract Three possible hypotheses could explain the polarity of the histological features of basal archosauriform and archosauromorph reptiles: either, the fibrolamellar complex is basal; or, theExpand
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Basal Dinosauriform Remains from Britain and the Diagnosis of the Dinosauria
A new genus and species of dinosauriform is described from the Triassic of south-west England. The description is based on isolated elements recovered from an assemblage of other dissociated tetrapodExpand
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The evolution and function of thyreophoran dinosaur scutes: implications for plate function in stegosaurs
Abstract The evolution of scutes in thyreophoran dinosaurs, based on Scutellosaurus, Scelidosaurus, Stegosaurus, and several ankylosaurs, began with small rounded or ovoid structures that typicallyExpand
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A functional analysis of flying and walking in pterosaurs
An analysis of the structure and kinematics of the forelimbs and hindlimbs of pterosaurs, and functional analogy with recent and fossil vertebrates, supports a reappraisal of the locomotory abilitiesExpand
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