Using semi-quantitative methods, the distribution of deep-water agglutinated foraminifera (DW AF) was analyzed within Latest Albian-earliest Turonian pelagic limestones famous Bottaccione standard section. The characteristic bathyal communities include forms purely "flysch-lype" assemblages and elements which are typical Upper Cretaceous abyssal environments North Atlantic. Well-established pla...

Abstract. The Rashrashiyah Formation of the Sirhan Basin in northern Saudi Arabia contains diverse assemblages planktonic foraminifera. We examined biostratigraphy, stratigraphic range and preservation upper Eocene Assemblages are well-preserved diverse, with 40 species 11 genera. All samples assigned to Priabonian Globigerinatheka semiinvoluta Highest Occurrence Zone (E14), consistent calcareo...

In this preliminary biometric study of the calcareous nannofossil species Chiasmolithus expansus, Chiasmolithus oamaruensis, and Chiasmolithus altus from the upper middle Eocene to lower Oligocene of Sites 647 and 748, we document a complete gradation of forms among all three species. Chiasmolithus oamaruensis has significantly higher morphologic variance than the other species. The Chiasmolith...