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. |