Tabita K. Symphonia. Department of Earth Sciences, Pondicherry University, Puducherry- 605014, India. Present address: Department of Earth Sciences, Eritrea Institute of Technology, Mai Nefhi, Eritrea. tsymphonia@gmail.com

The author has initially worked on ostracods and have now researched on foraminifera. Her research focuses on geochemistry, sedimentology besides studying microfossils.

Nathan D. Senthil. Department of Earth Sciences, Pondicherry University, Puducherry- 605014, India. senthilom@gmail.com

The author has worked on foraminifera and bryozoans.His research interests includes projects undertaken in micropaleontology and sedimentology. Recently, he has worked in groundwater pollution monitoring programs as well.