The book is designed to cover the recent researches carried-out by the scholars from across the world. It covers aspects related to Foraminifera, in biostratigraphy and paleoecology, isotopic studies, applicability as bio-indicators in pollution studies, taxonomy of Indo-Pacific assemblages, studies of history of ocean bottom oxygenation and experimental studies; Radiolaria from Antarctic Ocean; Microbalites including Diatoms in studying threats and conservation issues in salt lakes of Western Australia; Ostracoda from freshwater, marginal marine ecosystems from Andaman and Nicobar islands; Coralline-algae from late Eocene rocks of Meghalaya; Zygnematalean algae from across the Permian-Triassic boundary; and Microstructures of egg-shells of vertebrates showing paleobiologic links across the continents. It will serve the postgraduate students choosing Geology as well as researchers in the field of Micropaleontology.