Dr Tushar Kaushik

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Name : Dr. Tushar Kaushik

Designation : Scientist – D

Brief Background :

  • Genetic and morphological diversity in Foraminifera.
  • Re-evaluation of species specific foraminiferal proxies using combined taxonomic approach.
  • Integration of genetic diversity in Paleoceanography.
  • Late Neogene Biostratigraphy (~ 6.0 Ma).

Contact Details :

tkaushik@aripune.org; tussharkaushik@gmail.com

022 25325083 (Telephone)

  • PhD (Neogene Planktic Foraminifera & Paleoceanography) from University of Delhi
  • M.Sc. Geology from University of Delhi
  • B.Sc. (Hons.) Geology from University of Delhi
  • Current research focus on Foraminifera, a group of highly diverse single cell eukaryotic protists and widely used as proxy for deciphering present and past changes in marine environment.
  • We employ traditional morpho-taxonomic tools in-tandem with advance DNA based genetic tools (DNA barcoding and environmental DNA metagenomic analysis) for exploring hidden/crypticgenetic diversity, establishing robust taxonomic platformand understanding evolution.
  • We use the integrated taxonomic approach inre-evaluation of variousforaminiferal species specific proxies used in paleo-environmental and geochemical studies.
  • We work on understanding evolutionary lineages, biostratigraphy and diachrony amongst the extant and/or extinct planktic foraminiferal species spanning last ~6.0 million years using deep sea cores obtained from International Ocean Discovery Program (IODP/ODP).
  • Kaushik, T., Thirumalai, M. 2020. First report on Psammophaga simplora (Arnold, 1982), an organic-walled benthic foraminifer from the west coast of India, Arabian Sea. Journal of the Paleontological Society of India, v. 65(1).
  • Kaushik, T., Sinha, D. K., Singh, A.K. 2020. Late Neogene – Quaternary planktic foraminiferal biostratigraphy and biochronology from ODP Site 807A, Ontong Java Plateau, Western Equatorial Pacific. The Journal of Foraminiferal Research, v. 50(2).
  • Kaushik, T., Thirumalai, M., Dagar, S. S. 2019. Morphological variation in the porcelaneous benthic foraminifer Quinqueloculina seminula (Linnaeus, 1758): Genotypes or Morphotypes? A detailed morphotaxonomic, molecular and ecological investigation. Marine Micropaleontology, v. 150, 101748.
  • Kaushik, T., Thirumalai, M. 2019. Application of Molecular Tools in Benthic Foraminiferal Research: A Concise Review. In Vistas in Geological Research, U. U. Special Publication in Geology, vol. 17, pp. 105-108. (ISBN: 81-900907-0-4).
  • Kaushik, T. 2017. Paleoceanography. Current Science, v. 112(11), 2183-84.
  • Shrivastav A., Singh A.K., Sinha D.K, Kaushik T., Singh V.P., Mallick K. 2016. Significance of Globigerina bulloidesd’Orbigny: a foraminiferal proxy for palaeomonsoon and past upwelling records. Journal of Climate Change (IOS Press), vol. 2(2), pp. 99-110.