Fuente: Nature Geoscience - Issue - nature.com science feeds
 Expuesto el: miércoles, 31 de marzo de 2010 12:03
 Autor: Paul B. Wignall
 Asunto: Palaeontology: Safer in the south
| Palaeontology: Safer   in the south  Nature Geoscience 3, 228   (2010). doi:10.1038/ngeo827  Author: Paul B. Wignall Many species of   nannoplankton with carbonate shells vanished during the mass extinction 65   million years ago. An analysis of extinction rates from the world's oceans   reveals a geographic bias in the demise and recovery of nannoplankton   species. | 
 
