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P. K. Maithy ¹, C. M. Bindal ², S. K. Bhushan ³, Subodh Sharma ⁴, D. C. Banerji ⁵, Gopendra Kumar ⁶

Affiliations
1 F2212, Rajajipuram, Lucknow, IN
2 Geological Survey of India Lucknow, IN
3 Geological Survey of India Kolkota
4 Geological Survey of India Nagpur, IN
5 Geological Survey of India Jabalpur, IN
6 Geological Survey of India 48 Pandariba, Lucknow - 226 004, IN

Abstract

Lower Gondwana plant fossils from the Bharell Formation, exposed between Plnjoll Nala and Sessa along the Bhalukpong - Bomdila Road, West Kameng district Arunachal Pradesh, are described and reviewed The assemblage comprises Gangarnopteris cyclopterozdes, G intermedia, Glossopteris angustifolra, G communls, G damudIca, G indica, G lntennlttens, Scutum cf stowanum, Vertebrarra indica, Noeggerathiopsis sp , Cherrophyllum lacerata, stem of Buriadia, Cordaicarpus cordal, Rotundocarpus strlatus and Walzkalia cahenu The assemblage is comparable to that of the Karharbari Formation of Early Permian Coalfields of Peninsular India.

Keywords

Plant Fossils, Karharbari, Early Perimian, Arunachal Hlmalaya.

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Gopal Sharma ¹, Hasko Nesemann ², Subodh Sharma ²

Affiliations
1 Zoological Survey of India, Gangetic Plains Regional Station, Rajendra Nagar, Patna-800 016, Bihar, IN
2 Aquatic Ecology Centre, School of Science, Dep. of Environmental Sciences and Engineering, Kathmandu University, P.O.Box. No. 6250, Dhulikhel, Kavre district, NP

Abstract

Living populations of a large freshwater bivalve. Parreysia rajahensis (Lea, 1841) were found for the first time in the river Subernarekha. This bivalve species was found to occur in six localities of that river in altitudes ranging from 11 m to 196 m above mean sea level. In the middle reach of the river at Moori, Lupungdih and Maubhandar only empty shells of this bivalve species were available. Whereas, living populations of this bivalve were observed in the lower reach of the river at Gopiballabhpur and Jaleshwar. In addition, one living specimen of P. rajahensis was found in Kharkai confluence at Domuhani. Water qualities of the sampling sites were measured and relative abundance of this bivalve species along with its associate benthic molluscs was also estimated.

Keywords

Bivalve, Perreysia rajahensis, Subernarekha River, Population, Water Quality, Abundance.

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