PROCEEDINGS VII INDIAN COLLOQUIUM MICROPALAEONTOLOGY STRATIGRAPHY

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1 PROCEEDINGS OF THE VII INDIAN COLLOQUIUM ON MICROPALAEONTOLOGY AND STRATIGRAPHY (Colloquium Sponsored by University Grants Commission) Edited by Professor D. A. RASHEED UNIVERSITATSBIBUOTHEK HANNOVER TECHNISCHE INFORMATIONSEHBLIOTHEK DEPARTMENT OF GEOLOGY UNIVERSITY OF MADRAS MADRAS 1978

2 CONTENTS Page Editorial note Ayyasami, K and Jagannatha Rao, B.R. 1 On the possible faunal break at the contact of Trichinopoly and Ariyalur Groups in the Cretaceous succession of Tiruchirapalii District, Tamil Nadu. Biswas, S.K. 6 On the status of the Bhuj and Umia series of Kutoh, Western India. Chiplonkar, G.W. and Tapaswi, P.M. 17 A note on the Holocene ostracodes around Nandgaon, District Kolaba, Maharashtra State. Geetha, K. Desai 27 On the age of Gamdau Formation of Wagad Mesozoic sequence, Kutch. Ghare, M.A and Badve, R.M. 31 On Chuaria circularis Walcott from the Suket shales of Rampura, Madhya Pradesh. Govindan, A. 40 Selected Upper Cretaceous benthonic foraminifera from the Cauvery Basin, South India and Palaeobathymetric interpretation. Guha. D.K Eocene ostracoda from Gogha wells, Western India. Honnappa and Venkatachalapathy, V Some aspects of pyritised ostracoda shells : A possible tool in petroleum sedimentology from the sediments of Mangalore harbour area, Karnataka State, West Coast of India. Jagadish Pandey Paleocene smaller foraminifera of Um Sohryngkew River, Meghalaya. Jain, S.P. and Bhatia, S.B Recent benthonic foraminifera from Mandvi, Kutch.

3 VI Koshal, VN. Palynofossils of Oligocene subsurface sediments in South Cambay Basin. Madan Mohan. Narayanan, V. and Kumar, P. Paleocene and Early Neogene biostratigraphy of Bombay off shore region Madhavan Nair, K. Foraminiferal limestones in the Tertiary stratigraphy of Cauvery Basin, South India. Mathur, A.K., Chatterjee, B.P. and Mitra, D. 203 Eocene ostracodes from Garo hills, Meghalaya. Mathur, N.S., Devendra Pal and Srivastava, R.A.K Larger foraminifera from the Indus Formation, Ladakh region. Phansalkar, V.G. and Mary Kurien On the occurrence of foraminifera from Trichinopoly Group from Upper Cretaceous rocks of South India. Prabha Kalia Benthonic foraminiferal assemblage from the Kirthar Beds of Sri Kolayatji, Bikaner. Rasheed, D.A and Mohan, S.P Larger foraminiferal Biostratigraphy of the Eocene succession in the Cauvery Basin, Thanjavur District, Tamil Nadu State. Rasheed, D.A. and Ragothaman, V Ecology and distribution of Recent foraminifera from the Bay of Bengal off Porto Novo, Tamil Nadu State, India. Rasheed, D.A. and Ramachandran, K.K Foraminiferal Biostratigraphy of the Quilon Beds of Kerala State, India. Rasheed, D.A. and Ravindran, C.IM Foraminiferal Biostratigraphic studies of the Ariyalur Group of Tiruchirapalli Cretaceous rocks of Tani! Nadu State. Reddy, K.R. and Jagadiswara Rao, R Size distribution of Recent fo.aminifera, Pennar Estuary, Andhra Pradesh. Salujha, S.K. and Kindra, G.S Recycled Gondwana Pa'ynofossiis in the exposed Tertiary sediments along South Shillong Front, Meghalaya. 1S5

4 VII Shivarudrappa, T.V A note on the occurrence of Ichnofossil (?) in quartzite from Dodguni area, Tumkur District, Karnataka State. Shivarudrappa, T.V On a fossil Crab and the fresh water gastropods from the intertrappeans of Gurmatkal, Gulbarga District, Karnataka State. Shringarpure, O.M. and Nayak, S.R Fossil gibbsitization : Role of palaeoenvironments in transforming skeletal calcite of some fragmentary fossil forms found associated with the Naredi bauxites in Kutch. Singh, N.P. and Koshal, V.N Paleogene biostratigraphy, paleoecology and paleoenvironments of Jotana- Sobhasan area. North Gujarat. Singh, S.K., Kumar, S. and Singh, I.B On the upper age limit of upper flysch of Heim and Gansser, Malla Johar area, Pithoragarh District, India. Srinivasan, M.S. and Azmi, R.J Orbulina datum and the Early-Middle Miocene boundary in Ritchie's Archipelago, Andaman sea. Srinivasan, M.S. and Singh, D.N A contribution to the stratigraphy of Little Andaman island, Bay of Bengal. Srivastava, D.K Microechinoids from the Oligo-Miocene rocks of Kutch, India. Sundaram, D. and Nandi, A Palynological study of the sediments from Kamptee coalfield, Nagpur District, Maharashra State. Suneja, I.J., Kumar, R. and Chopra, S.R.K Observations on the Charophyte flora of Chinji Beds of Ramnagar (Jammu and Kashmir). Suneja, I.J., Singh, G. and Chopra, S.R.K A note on the occurrence of microfossils in the Tawi valley sediments of Jammu and Kashmir and their Stratigraphic significance. Venkatachalapathy, V. and Nayaz Ahmed Shareef Scanning electron microscopy of some Rotaliid foraminifera of Mangalore Coast, Karnataka, South India.

5 VIII Verma, V.K., Sarma, M.N. and Verma, P.K Lithostratigraphy in and around Pachmarhi. Viswanathiah, M.N., Venkatachalapathy, V. and Mahaiakshmamma, A.P Organic plates from core samples of Nirbudihal area, Kaladgi Group, S. India. Viswanathiah, M.N., Venkatachalapathy, V. and Nanjundaswamy, S Acritarchs and other blue-green algal forms from the Gokak quartzarenites (Badami Group), Karnataka, South India. Viswanathiah, M.N., Venkatachalapathy, V. and Naresh, T.K Microbiota from Bilgi quartzarenites of the Bagalkot Formation, Kaladgi Group, Karnataka.