Fossilized spermatozoa preserved in a 50-Myr-old annelid cocoon from Antarctica
The origin and evolution of clitellate annelids-earthworms, leeches and their relatives-is poorly understood, partly because body fossils of these delicate organisms are exceedingly rare. The distinctive egg cases (cocoons) of Clitellata, however, are relatively common in the fossil record, although...
Guardado en:
| Autores principales: | Bomfleur, Benjamin, Mörs, Thomas, Ferraguti, Marco, Reguero, Marcelo Alfredo, McLoughlin, Stephen |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2015
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/86204 |
| Aporte de: |
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