The study of continental and marine benthic communities of the Cretaceous/Tertiary transitional zone in the Pyrenees has shown, besides various extinctions (clavatoraceae, larger foraminifera), a severe impoverishment of faunas and floras. These changes are analyzed among various benthic fossil groups of continental and shallow marine environments; then they are compared with changes in benthic deep sea ostracods associated with mass extinction in planktonic assemblages, at the Cretaceous/Tertiary boundary, in order to have a better understanding of the ecological processes which have driven them.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not currently have access to this article.