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Trilobite spines and beetle horns: sexual selection in the Palaeozoic?

Raphiophorid trilobites commonly bore median cephalic protuberances such as spines or bulbs, showing a remarkable variety of form. It is unlikely that their primary function was for protection or in hydrodynamics. A case is made that they were secondary sexual features, by comparison with similar mo...

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Detalles Bibliográficos
Autores principales: Knell, Robert J, Fortey, Richard A
Formato: Artigo
Lenguaje:Inglês
Publicado: The Royal Society 2005
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Acceso en línea:https://ncbi.nlm.nih.gov/pmc/articles/PMC1626209/
https://ncbi.nlm.nih.gov/pubmed/17148165
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1098/rsbl.2005.0304
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