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Preserved soft anatomy confirms shoulder-powered upstroke of early theropod flyers, reveals enhanced early pygostylian upstroke, and explains early sternum loss
Anatomy of the first flying feathered dinosaurs, modern birds and crocodylians, proposes an ancestral flight system divided between shoulder and chest muscles, before the upstroke muscles migrated beneath the body. This ancestral flight system featured the dorsally positioned deltoids and supracorac...
Autores principales: | Pittman, Michael, Kaye, Thomas G., Wang, Xiaoli, Zheng, Xiaoting, Dececchi, T. Alexander, Hartman, Scott A. |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9704744/ https://www.ncbi.nlm.nih.gov/pubmed/36375073 http://dx.doi.org/10.1073/pnas.2205476119 |
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