The study of planktonic foraminifera of the Ilam and Gurpi formations at Sarvestan area (SE of Shiraz) enables me to find the most standard biozones defined in mediterranean regions, especially Tethysian domain. Seven biozones were determined. Biozones I (Dicarinella concavata zone) and II (Dicarinella asymetrica zone) belong to the Ilam Formation and indicate the Late Coniacian-Early Santonian...

This study presents calcareous nannofossils biostratigraphy of the Campanian‒Danian interval at the Gurpi Formation in the southwest of Ilam Province, in the Zagros Basin. The studied sequence of the Gurpi Formation mainly consists of marly shale and limestones. The thickness of Gurpi Formation was measured as approximately 230 m. Forty-five species belonging to twenty-eight genera were recorde...

Abstract From the upper Maastrichtian (Tarbur Fm.) and Paleocene of Iran, 20 species scleractinian corals belonging to 17 genera 14 families, one octocoral Heliopora are newly recorded. Furthermore, coral previously described from Tarbur Fm. revised included in evaluation, resulting a total 37 28 families (including 3 subfamilies) for Iranian K/Pg-boundary time period. The majority taxa (21 out...

Planktonic foraminifera and major palynomorph groups (i.e. terrestrial, marine, and amorphous organic matter) of the Campanian-Selandian strata of the Gurpi Formation were studied to evaluate the changes in the Zagros paleobasin in southwestern Iran. Planktonic foraminifera were categorized into four morphotypes according to their paleodepth, extending from Morphotype 1, comprising surface gene...

Abstract The structure and tectonic evolution of the Cretaceous rift basins southern Egypt are poorly understood. In this study, tectonostratigraphy Komombo Basin has been determined using seismic, well biostratigraphic data. basin is compared to Kharit, Nuqra Beni Suef in as Muglad Sudan. a 58 km long, 28 wide NW–SE trending half‐graben infilled with 2200 m Berriasian‐Maastrichtian sediments o...

During the early Maastrichtian (ca. 71 Ma), important changes occurred in climate, weathering, sea level, biota, and the global carbon cycle. Global climate was characterized by rapid cooling within the long-term post-Santonian refrigeration of high-latitude surface and intermediate waters (Barrera, 1994; Huber et al., 1995). The intensity of continental weathering increased, as inferred from t...

New material of the derived baenid turtle Boremys pulchra from Hell Creek Formation Montana extends stratigraphic range taxon through at minimum latest Maastrichtian. Previously, species was constrained to Campanian and Alberta, so this extension constitutes least 5 million years. Due fossil reworking Bug Anthills assemblage, where Maastrichtian Paleocene deposits are mixed, a definitive for B....