Campanian and Maastrichtian ammonites from the Mons Basin and adjacent areas (Belgium)
Upper Cretaceous chalks of the Mons Basin and adjacent areas in Belgium have yielded small but stratigraphically significant ammonite assemblages, as has the reworked basal conglomerate of the succeeding Palaeocene Tuffeau de Ciply. Twenty two species are described on the basis of specimens housed i...
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| 格式: | Journal article |
| 语言: | English |
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1993
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| 总结: | Upper Cretaceous chalks of the Mons Basin and adjacent areas in Belgium have yielded small but stratigraphically significant ammonite assemblages, as has the reworked basal conglomerate of the succeeding Palaeocene Tuffeau de Ciply. Twenty two species are described on the basis of specimens housed in the collections of the Institut Royal des Sciences Naturelles de Belgique, Brussels. They indicate Campanian and Lower Maastrichtian ages that are compatible with belemnite and foraminiferal evidence. Of great interest is the presence of three Baculites species previously known only from the United States Western Interior, where they are upper Lower Campanian and Lower Maastrichtian zonal indicators. -Author |
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