Aerodynamic performance of the feathered dinosaur Microraptor and the evolution of feathered flight
Open accessAbstract
Understanding the aerodynamic performance of feathered, non-avialan dinosaurs is critical to reconstructing the evolution of bird flight. Here we show that the Early Cretaceous five-winged paravian Microraptor is most stable when gliding at high-lift coefficients (low lift/drag ratios). Wind tunnel experiments and flight simulations show that sustaining a high-lift coefficient at the expense of high drag would have been the most efficient strategy for Microraptor when gliding from, and between, low elevations. Analyses also demonstrate that anatomically plausible changes in wing configuration and leg position would have made little difference to aerodynamic performance. Significant to the evolution of flight, we show that Microraptor did not require a sophisticated, 'modern' wing morphology to undertake effective glides. This is congruent with the fossil record and also with the hypothesis that symmetric 'flight' feathers first evolved in dinosaurs for non-aerodynamic functions, later being adapted to form lifting surfaces.
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Microraptor was capable of generating sufficient speed and flight forces for a ground-based takeoff, within the range of values estimated for an arboreal launch.
“In all cases, we found that Microraptor was capable of generating sufficient speed and flight forces for a ground-based takeoff and were within the range of values estimated for an arboreal launch [19, 20, 22].”
From Potential for Powered Flight Neared by Most Close Avialan Relatives, but Few Crossed Its Thresholds (2020) · cites this paper as [20]
The Discussion (page unavailable in our copy) says an initial push-off would generate only a small horizontal velocity and that most necessary flight speed had to come from falling under gravity. The paper models glides from elevated positions, not a ground-based takeoff capable of generating sufficient speed and flight forces. (LLM, conf=0.88)
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“Because the taxon Microraptor is crucial to our analyses, we included several mass and wing area estimate permutations (see text) labeled as follows: Allen 2013, Allen et al., 2013 [76]; C& T 2007, Chatterjee and Templin, 2007 [19]; and Dyke 2013, Dyke et al., 2013 [20].”
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- Authors
- Dyke, G., de Kat, R., Palmer, C., van der Kindere, J., Naish, D., & Ganapathisubramani, B.
- Affiliations
- National Oceanography Centre (GB)
- University of Southampton (GB)
- Corresponding author
- Dyke, Gareth
- Venue
- Nature Communications
- Published
- 2013-09-18
- Volume
- 4
- Issue
- 1
- Pages
- 2489-2489
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2119815062
- Cited by
- 77
- References
- 39
- Citations by year
- 2026: 5 · 2025: 5 · 2024: 6 · 2023: 6 · 2022: 6 · 2021: 4 · 2020: 16 · 2019: 3 · 2018: 3 · 2017: 5 · 2016: 6 · 2015: 4 · 2014: 8
- FWCI
- 4.06
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Nature Communications (publishedVersion)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- ePrints Soton (University of Southampton) (submittedVersion)
- Funders
- Engineering and Physical Sciences Research Council (EP/J501530/1)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
- Physical Sciences › Engineering › Aerospace Engineering › Biomimetic flight and propulsion mechanisms
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Fossil Insects in Amber
- Keywords
- Microraptor, feathered dinosaurs, aerodynamic performance, gliding flight, paravians, lift-to-drag ratio, wing morphology, leg position, Lower Cretaceous
- MeSH terms
- Animals, Biomechanical Phenomena, Biological Evolution, Feathers, Flight, Animal, Fossils, Models, Anatomic, Phylogeny, Wind, Wings, Animal, Dinosaurs
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