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Cambrian stalked echinoderms show unexpected plasticity of arm construction
Feeding arms carrying coelomic extensions of the theca are thought to be unique to crinoids among stemmed echinoderms. However, a new two-armed echinoderm from the earliest Middle Cambrian of Spain displays a highly unexpected morphology. X-ray microtomographic analysis of its arms shows they are po...
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| Main Authors: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
The Royal Society
2012
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3223674/ https://ncbi.nlm.nih.gov/pubmed/21653588 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1098/rspb.2011.0777 |
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