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NEW DINOFLAGELLATE CYSTS FROM THE RECENT SEDIMENTS OF NORTHERN INDIAN OCEAN
| Uddandam, P. R., et al. | |
| 2020 | |
| Journal of the Palaeontological Society of India Volume 65(1), 15-26 | |
| NEW DINOFLAGELLATE CYSTS FROM THE RECENT SEDIMENTS OF NORTHERN INDIAN OCEAN |
Organic walled dinoflagellate cysts have been utilised to reconstruct paleoclimate and paleoceanographic changes mainly from the temperate and polar region with less attention from the tropics. Information on the dinocyst taxonomy and ecological affinity from the monsoon influenced Northern Indian Ocean is still in infancy. The surface sediments from the Bay of Bengal yield significant proportions of protoperidiniacean dinoflagellate cysts. In the present study four new species from the Bay of Bengal and eastern Arabian Sea are established; these are Cryodinium? matsuokai, Lejeunecysta longistraiata, Quinquecuspis pentagona and Stelladinium denticulatum. The new taxa appear to be related to high nutrient concentrations and persistent low salinity conditions.