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Recent freshwater Ostracoda and Bivalvia from Indo-Nepal border (Tethys Himalaya): Ecological implications

Kotlia, Bahadur Singh and Kramer, Michael and Joshi, Lalit Mohan and Sanwal, Jaishri (2015) Recent freshwater Ostracoda and Bivalvia from Indo-Nepal border (Tethys Himalaya): Ecological implications. In: HIMALAYAN GEOLOGY, 35 (1). pp. 56-65.

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Official URL: http://www.researchgate.net/publication/273521886_...


We report for the first time Recent ostracods and bivalves from Central Tethys Himalaya, collected from Changru village, which is situated in the Tinker valley of northwestern Nepal near the Indo-Nepal border. The specimens were collected from the surface sediments of a small pond, shaped by a small tributary of the glacier fed Tinker River. The ostracod species belonging to the families Ilyocyprididae, Cyprididae and Candonidae and one bivalve (Pisidium sp., Family Pisidiidae) have been identified. Psychrodromus olivaccus and Potamocypris villosa are being reported for the first time from India and Nepal. Several broken and unidentifiable gyrogonites of charophyta were also recovered. The ostracod sample, as a whole, points to a shallow freshwater lake environment influenced by slowly running carbonate rich waters under cool temperatures, low mineralization and sparse vegetation. This is in accordance with the occurrence of Pisidium, which is commonly associated with ostracods in the freshwater lakes and streams. The ostracod fauna shows affinity with the fossil and extant forms recovered from the Higher and Tethys Himalaya of NW India. This opens a new opportunity for studying ostracods in the Indian Central Himalaya - a region which otherwise has been ignored until now.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the WADIA INST HIMALAYAN GEOLOGY, 33 GENERAL MAHADEO SINGH RD, DEHRA DUN, 248 001, INDIA
Keywords: Freshwater ostracods; Bivalvia; Central Tethys Himalaya; Indo-Nepal border; Ecological implication
Department/Centre: Division of Mechanical Sciences > Centre for Earth Sciences
Date Deposited: 26 Aug 2015 07:25
Last Modified: 26 Aug 2015 07:25
URI: http://eprints.iisc.ac.in/id/eprint/52264

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