Lithostratigraphy, biostratigraphy and chemostratigraphy of Upper Cretaceous and Paleogene sediments from southern Tanzania: Tanzania Drilling Project Sites 27-35

► An expanded and nearly continuous Upper Cretaceous succession is confirmed in southern Tanzania. ► Facies analysis indicates outer shelf-upper slope settings in a subtropical-tropical continental margin. ► Shell preservation of calcareous microfossils is often good to excellent. ► A positive shift in bulk carbonate δ18O appears to reflect Late Cretaceous global cooling. ► Ongoing works will help understand Late Cretaceous biodiversity and climate dynamics.