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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP455.4
EISBN: 9781786203366
...-fidelity structural models of the wing spar. The bending strength of the wing spar of a 6 m wingspan ornithocheirid pterosaur is used to infer the likely membrane tension. The tensions required to suppress aeroelastic flutter and to minimize ballooning of the membrane under flight loads are also estimated...
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Journal Article
Journal: Paleobiology
Published: 06 December 2016
Paleobiology (2017) 43 (1): 144–169.
...Francisco J. Serrano; Paul Palmqvist; Luis M. Chiappe; José L. Sanz Abstract Our knowledge of the diversity, ecology, and phylogeny of Mesozoic birds has increased significantly during recent decades, yet our understanding of their flight competence remains poor. Wing loading ( WL ) and aspect...
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Journal Article
Journal: Paleobiology
Published: 12 March 2015
Paleobiology (2015) 41 (2): 205–225.
...Robert A. Stevenson; Dennis Evangelista; Cindy V. Looy Abstract Manifera talaris , a voltzian conifer from the late early to middle Permian (ca. 270 Ma) of Texas, is the earliest known conifer to produce winged seeds indicative of autorotating flight. In contrast to autorotating seeds and fruits...
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Journal Article
Journal: Paleobiology
Published: 07 May 2014
Paleobiology (2014) 40 (3): 459–476.
... are theropod dinosaurs, whose skeletons and feathered forelimbs record the origin and evolution of bird flight. However, in spite of over a century of discussion, the functions of forelimb feathers during the evolution of flight remain enigmatic. Both aerodynamic and non-aerodynamic roles have been proposed...
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Journal Article
Published: 01 January 2013
Journal of Paleontology (2013) 87 (1): 151–158.
... on the Antarctic continent. Falconids occur in a variety of habitats and exhibit a multiplicity of behaviors and body shapes, ranging from long-winged and fast-flying predatory birds (genus Falco ) to forest inhabitants with great flight maneuverability (genus Micrastur ) and to ground-dwelling scavenging birds...
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Journal Article
Journal: Paleobiology
Published: 01 February 2009
Paleobiology (2009) 35 (1): 1–12.
...T. Alex Dececchi; Hans C. E. Larsson Abstract The evolution of powered flight has traditionally been associated with the origin of birds, the most successful clade of modern tetrapods, as exemplified by the nearly 10,000 species alive today. Flight requires a suite of morphological changes...
FIGURES
Journal Article
Published: 01 November 2007
Geological Magazine (2007) 144 (6): 977–986.
... with elements from New Mexico (USA) and from the Argentine locality of El Brete (Salta Province) testify to the global distribution of large flighted euenantiornithine birds in the Late Cretaceous. We discuss the systematics and taxonomy of additional isolated bones of Enantiornithes that were collected from...
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Journal Article
Journal: Paleobiology
Published: 01 September 2006
Paleobiology (2006) 32 (3): 417–431.
... of flight feathers rather than contour feathers, including vane asymmetry, curved shafts, and a self-stabilizing overlap pattern. Many of these features facilitate lift generation in the wings and tail of birds, suggesting that the hindlimbs acted as airfoils. A new reconstruction of Archaeopteryx...
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Journal Article
Published: 10 February 2006
Canadian Journal of Earth Sciences (2006) 43 (1): 1–7.
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Journal Article
Journal: Paleobiology
Published: 01 January 2005
Paleobiology (2005) 31 (3): 382–399.
...Stephen M. Gatesy; David B. Baier Abstract Flying birds flap their wings to generate aerodynamic forces large enough to overcome weight and drag. During this behavior, the forelimbs are displaced and deformed in a complex, coordinated sequence of movements collectively known as the “flight stroke...
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Journal Article
Published: 20 September 2004
Canadian Journal of Earth Sciences (2004) 41 (9): 1097–1107.
... and wing. Vescornis also exhibits characteristics that separate it from other enantiornithine birds, such as the short alular phalanx, the vestigial manual claws, and the well-developed and long foot claws. These features suggest an adaptation towards an improved flight capability, while the ability...
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Journal Article
Published: 01 January 1999
Bulletin de la Société Géologique de France (1999) 170 (1): 85–90.
Journal Article
Journal: Paleobiology
Published: 01 October 1998
Paleobiology (1998) 24 (4): 450–469.
... hindlimb kinematics and posture apparently began shortly prior to the origin of flight, but did not acquire a characteristically modern avian aspect until after the later acquisition of derived flight characteristics. GeoRef, Copyright 2004, American Geological Institute. 1998 ...
Journal Article
Published: 01 May 1975
Journal of Paleontology (1975) 49 (3): 534–548.