Abstract
The evolution of benthic foraminiferal assemblages at the Cenomanian-Turonian boundary in southeastern France is analysed. The biostratigraphic framework is clearly defined and the associations of benthic Foraminifera characterizing various palaeogeographic domains compared. During the Cenomanian-Turonian crisis, typical Cenomanian carbonate platform assemblages disappeared and were replaced by new associations in mid-Turonian times. In basinal environments an opportunistic adaptative strategy occurred during the crisis, followed by a recolonization of substrates by the same taxa.
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