9 research outputs found
The Campanian stage
No full textThe Campanian working party in Brussels did not wish to make a conclusive recommendation but there was a strong feeling that the base of the stage should be fixed at the extinction-level of the crinoid Marsupites. Other criteria discussed included ammonites, belemnites, foraminifera, calcareous nannofossils and magnetostratigraphy. Candidates for a boundary-stratotype occur in central Texas and south-east England. Until these sections have been described in detail, it will not be possible to choose a boundary-stratotype, and hence make a firm recommendation to the International Subcommission for the base of the stage. It was felt that three substages should be used for the Campanian, but international correlations within the stage are still too uncertain to make recommendations for the definitions of these substages
Upper Campanian-lower Maastrichtian sections of northern Rostov oblast: Article 2. Depositional environments and paleogeography
No full textThe late Cenomanian paleoecological event (OAE 2) in the eastern Caucasus basin of Northern Peri-Tethys
No full textThe stratigraphic setting of cretaceous volcanic rocks in Crimea and in the North Caucasus
No full textEarly Senonian climate reconstruction for southwestern Siberia on the basis of paleobotanical data
No full textNew Paleocene Sepiid Coleoids (Cephalopoda) from Egypt: Evolutionary Significance and Origin of the Sepiid ‘Rostrum’
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