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On the absence of sternal elements in Anchiornis (Paraves) and Sapeornis (Aves) and the complex early evolution of the avian sternum
Anchiornis (Deinonychosauria: Troodontidae), the earliest known feathered dinosaur, and Sapeornis (Aves: Pygostylia), one of the basalmost Cretaceous birds, are both known from hundreds of specimens, although remarkably not one specimen preserves any sternal ossifications. We use histological analys...
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| Main Authors: | , , , , , |
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| Format: | Artigo |
| Jezik: | Inglês |
| Izdano: |
National Academy of Sciences
2014
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| Teme: | |
| Online dostop: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4183337/ https://ncbi.nlm.nih.gov/pubmed/25201982 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.1411070111 |
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