The Late Cretaceous–Early Paleogene (K–Pg) was a critical period of transition in geological time. This encompassed short-term climatic fluctuations on global scale, changes ocean circulation, and sudden large extinctions marine terrestrial organisms. In the study area, located mid to low latitudes, Cretaceous Early were very tectonically active due positioning site close collision zone two con...

Abstract. The fossil record of marine microplankton provides insights into the evolutionary drivers which led to origin modern deep-water plankton, one largest components ocean biomass. We use global abundance and biogeographic data, combined with depth habitat reconstructions, determine environmental mechanisms behind speciation in two groups pelagic microfossils over past 15 Myr. compare our ...

The present contribution provides a study of calcareous nannofossils and siliceous microfossils from the Sawai Bay Formation on Car Nicobar Island, northern Indian Ocean. Two stratigraphically short sediment intervals near have been examined. Qualitative quantitative microfossil analyses show ‘A’ Section to be devoid microfossils, while 24 well-preserved nannofossil taxa are identified. ‘B’ yie...