Flight capabilities of Archaeopteryx
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The results suggest the possibility for a surprisingly late acquisition of avian flight.
“Though not a novel hypothesis (Ostrom, 1979; Speakman & Thomson, 1994; Dececchi & Larsson, 2011), it suggests the possibility for a surprisingly late acquisition of avian flight.”
From A new paravian dinosaur from the Late Jurassic of North America supports a late acquisition of avian flight (2019) · cites this paper as Speakman & Thomson, 1994
The discrepancy between this study's finding that flightless birds retain asymmetric primaries and Speakman & Thomson's conclusion that flightless birds' primaries are significantly less asymmetrical than those of flying birds could be due to differences in taxon sampling.
“This is in contrast to the conclusions drawn by Speakman & Thomson [8] in which they found the primaries of flightless birds to be significantly less asymmetrical than those of flying birds, but this discrepancy could be due to differences in taxon sampling between their study and the present one.”
From Barb geometry of asymmetrical feathers reveals a transitional morphology in the evolution of avian flight (2015) · cites this paper as [8]
Cites
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Functional osteology of the avian wrist and the evolution of flapping flight
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Self-citation
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Xu, X., Zhou, Z., Wang, X., Kuang, X., Zhang, F., & Du, X. (2003) · Nature · doi:10.1038/nature01342 · Cited by 485 · see citing works
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The origin and early evolution of birds
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VESTIGIALIZATION AND LOSS OF NONFUNCTIONAL CHARACTERS
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An Early Cretaceous bird from Spain and its implications for the evolution of avian flight
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From extant to extinct: locomotor ontogeny and the evolution of avian flight
Heers, A. M., & Dial, K. P. (2012) · Trends in Ecology & Evolution · doi:10.1016/j.tree.2011.12.003 · Cited by 114 · see citing works
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“820 821 Our analysis includes all of Clarke’s lineage of ornithuromorph characters (originating from 822 Clarke, 2002) as incorporated into Turner et al.’s (2012) TWiG analysis, so should be a good test 823 for this portion of the tree. Bellulornis is the sister taxon to Ornithuromorpha, followed by a 824 pairing of A…”
MethodInfluentialFeathered Dinosaurs, Flying Dinosaurs, Crown Dinosaurs and the Names "Aves"
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On the origins of birds: the sequence of character acquisition in the evolution of avian flight
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From baby birds to feathered dinosaurs: incipient wings and the evolution of flight
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Body plumage in Archaeopteryx: a review, and new evidence from the Berlin specimen
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Broad-Scale Patterns of Late Jurassic Dinosaur Paleoecology
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Functional constraints on the number and shape of flight feathers
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Self-citationARCHAEOPTERYX, AR CHAEORAPTOR, AND THE "DINOSAURS-TO-BIRDS" THEORY—(PART II)
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A NEW METHOD TO CALCULATE PALAEOGRAVITY USING FOSSIL FEATHERS
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- Authors
- Speakman, J. R., & Thomson, S. C.
- Affiliations
- University of Aberdeen (GB)
- ORCID
- Speakman, J. R.
- Venue
- Nature
- Published
- 1994-08-18
- Volume
- 370
- Issue
- 6490
- Pages
- 514-514
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2052211363
- Cited by
- 37
- References
- 5
- Citations by year
- 2024: 1 · 2020: 2 · 2019: 4 · 2017: 1 · 2015: 2 · 2014: 4 · 2013: 1 · 2012: 3
- FWCI
- 2.68
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Nature (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
- Physical Sciences › Engineering › Aerospace Engineering › Biomimetic flight and propulsion mechanisms
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Keywords
- Archaeopteryx, flight ability, bird flight, pterodactyls, fossil birds, flight dynamics
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