Peryt, D. (1980). Planktic foraminifera zonation of the Upper Cretaceous in the middle Vistula River valley, Poland. Palaeontologia Polonica. 41: 1-123.
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Peryt, D.
1980
Planktic foraminifera zonation of the Upper Cretaceous in the middle Vistula River valley, Poland
Planktic foraminifera from the Upper Cretaceous deposits of the Vistula River valIey of Central Poland, the most complete exposed section of the Upper Cretaceous in Europe, have been studied . In this section, comprising Cenomanian to Maastrichtian deposits, 90 species of planktic foraminifera were identified , 5 of them being new: Dicarinella longoriai , Marginotruncana caronae, Globotruncana pozaryskae, Chiloguembelina praecursor, Heterohelix vistulaensis. On the basis of this as semblage 10 foraminiferal zones have been distinguished : Hedbergella planispira Assemblage-Zone, Rotalipora cushmani Range-Zone, Helvetoglobotruncana helvetica Interval-Zone, Marginotruncana coronata Interval-Zone, Globotruncana lapparenti Interval-Zone, Globotruncana fornicata Interval-Zone, Globotruncana area Interval-Zone, Globigerinelloides multispinus Interval-Zone, Rugoglobigerina pennyi Interval-Zone , Guembelitria cretacea Range-Zone . This zonation has been correlated with other zonations based on cephalopods, inocerarns and coccoliths of the region studied as welI as with foraminiferal zonations proposed for other regions of the world .