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Bird embryos uncover homology and evolution of the dinosaur ankle
The anklebone (astragalus) of dinosaurs presents a characteristic upward projection, the ‘ascending process' (ASC). The ASC is present in modern birds, but develops a separate ossification centre, and projects from the calcaneum in most species. These differences have been argued to make it non...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Nature Pub. Group
2015
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660350/ https://www.ncbi.nlm.nih.gov/pubmed/26563435 http://dx.doi.org/10.1038/ncomms9902 |