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 in the collections of the Institut Royal des Sciences Naturelles de Belgique, Brussels. They indicate Campanian and Lower Maastrichtian ages that are compatible with the belemnite and foraminiferal evidence of ROBASZYNSKI & CHRISTENSEN (1989). Of great interest is the presence of three Baculites... Mehr ...