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Mallikarjuna, U. B.
- Ostracode Fauna of the Niniyur Formation (Palaeocene), Cauvery Basin, Tamil Nadu, Southern India
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1 Dept. of Geology, Bangalore University, Bangalore-560 056, IN
1 Dept. of Geology, Bangalore University, Bangalore-560 056, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 47, No 5 (1996), Pagination: 561-578Abstract
A rich and interesting ostracode assemblage comprising 29 taxa, are recorded from the Niniyur Formation of the Cauvery Basin, Tamilnadu, Southern India. Of these, 6 species are new, 19 species are already reported and 4 species are left under open nomenclature. The new species are Hemicyprideis oertlii, Cyamocytheridea? niniyurensis, Costa niniyurensis, Stigmatocythere gowdai, Protobuntonia Jaini and Ponlocyprella niniyurensis. The present paper gives distribution, age and affinity of the fauna with systematic descriptions of six new species and four indeterminate species. The assemblage shows affinity to Palaeocene and Eocene forms of Western Europe, Saudi Arabia, Pakistan and other areas in India. The overall palaeontological evidences suggest a Palaeocene age for the Niniyur Formation.Keywords
Ostracode, Micropalaeontology, Niniyur Formation, Palaeocene, Tamil Nadu.- Ostracodes from the Ariyalur Group (Late Cretaceous), Cauvery Basin, Southern India
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1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 48, No 2 (1996), Pagination: 189-201Abstract
Fifty-two ostracode taxa are recorded from the Ariyalur Group (Late Cretaceous), Cauvery Basin, Southern India. Of these, seven are new, thirty-nine already reported and six left under open nomenclature. The new species are Cytherelloidea jaini, Curfsina Sastryi, Limburgina gowdai, L. mannikerii, L. guhai, L. khoslai and Pontocyprella ariyalurensis. The paper gives systematic description of seven species and revised/synonymised list of ostracode species reported earlier.Keywords
Palaeontology, Late Cretaceous, Ostracodes, Ariyalur Group, Cauvery Basin, Tamil Nadu.- New Report of Palaeontological Interest
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 71, No 4 (2008), Pagination: 601-601Abstract
No Abstract.- 5th International Conference on 'Environmental Micropalaeontology, Microbiology and Meiobenthology', Chennai, India
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Authors
Affiliations
1 Bangalore, IN
1 Bangalore, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 71, No 5 (2008), Pagination: 752-752Abstract
No Abstract.- The Cretaceous System in the Makarov Area, Southern Sakhalin, Russian Far East
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Authors
Affiliations
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 69, No 5 (2007), Pagination: 1135-1135Abstract
No Abstract.- New Palaeontological Papers of Interest
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Authors
Affiliations
1 Dept. of Geology, Bangalore University, Bangalore, IN
1 Dept. of Geology, Bangalore University, Bangalore, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 69, No 4 (2007), Pagination: 875-875Abstract
No Abstract.- National Workshop on Sequence Stratigraphy
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Authors
Affiliations
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 65, No 3 (2005), Pagination: 375-376Abstract
No Abstract.- H.M. Nagaraja (1949-2002)
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Authors
Affiliations
1 Dept. of Geology, Bangalore University, Bangalore-560 056, IN
1 Dept. of Geology, Bangalore University, Bangalore-560 056, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 61, No 4 (2003), Pagination: 503-503Abstract
No Abstract.- The Complete Encyclopedia of Fossils
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Authors
Affiliations
1 Department of Geology , Bangalore University, Bangalore - 560 056, IN
1 Department of Geology , Bangalore University, Bangalore - 560 056, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 68, No 6 (2006), Pagination: 1123-1123Abstract
No Abstract.- Palaeoenvironmental Significance of Trace Fossils from the Palaeocene Sediments of the Pondicherry Area, South India
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Authors
Affiliations
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
2 Department of Geology, M.S. University, Baroda - 390 002, IN
3 Geology Division, Civil Engineering Department, Islamiah Institute of Technology, National Park Road, Bangalore - 560076., IN
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
2 Department of Geology, M.S. University, Baroda - 390 002, IN
3 Geology Division, Civil Engineering Department, Islamiah Institute of Technology, National Park Road, Bangalore - 560076., IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 74, No 6 (2009), Pagination: 738-748Abstract
Sediments of Manaveli Formation (Palaeocene) are studied from the Thondaimanattam quarry section and Manaveli section of the Pondicherry area, which comprises of bioturbated arenaceous limestone-shale and shaly-sandstone sequences respectively. These sediments consist of high density and low diversity trace fossil genera which includes Lanicodichnus, Ophiomorpha, Planolites, Palaeophycus, Skolithos, Thalassinoides, and Polychaetes tubes. The abundance of horizontal structures of the Thondaimanattam quarry section indicate low to moderate wave and current energy in fully marine subtidal environments while the presences of vertical structures of the Manaveli section indicate moderate to high wave and current energy in the marginal marine environment of deposition for the Palaeocene sediments of the Pondicherry area.Keywords
Trace Fossils, Palaeocene, Palaeoenvironment, Pondicherry.References
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- Proceedings of Sixth European Ostracodologists' Meeting
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Authors
Affiliations
1 Geology Division, Dept. of Civil Engg., Islamiah Institute of Techonology, Bangalore – 500 076, IN
1 Geology Division, Dept. of Civil Engg., Islamiah Institute of Techonology, Bangalore – 500 076, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 73, No 2 (2009), Pagination: 299-300Abstract
No Abstract.- Palaeobiogeographical Insights on Continental Vertebrate Fossil Record from India
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 2 (2010), Pagination: 457-457Abstract
No Abstract.- Microbiota from Precambrian and Mesoproterozoic Rocks of India - Recent Studies
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 2 (2010), Pagination: 458-458Abstract
No Abstract.- Special Issue on Applied Micropalaeontology
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 1 (2011), Pagination: 102-102Abstract
No Abstract.
- Ammonite Biostratigraphy of the Spiti Shales Formation
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 76, No 1 (2010), Pagination: 99-99Abstract
No Abstract.- Model Study of a Cretaceous-Paleocene Basin, West Greenland
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 5 (2010), Pagination: 775-775Abstract
No Abstract.- 3.2 Billion-Year-Old Organic-Walled Microfossils
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 5 (2010), Pagination: 775-775Abstract
No Abstract.- Foraminifera from the Early Danian Intertrappean Beds in Rajahmundry Quarries, Andhra Pradesh
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Authors
Affiliations
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
2 Department of Geosciences, Princeton University, Princeton, NJ, 08544, US
3 Civil Engineering Department, Geology Division, Islamiah Institute of Technology, National Park Road, Bangalore - 560076, IN
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN
2 Department of Geosciences, Princeton University, Princeton, NJ, 08544, US
3 Civil Engineering Department, Geology Division, Islamiah Institute of Technology, National Park Road, Bangalore - 560076, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 6 (2010), Pagination: 851-863Abstract
Intertrappean beds exposed between upper and lower traps of the Government and Sunnamrayalu quarries of Rajahmundry were analyzed based on benthic and planktic foraminifera, ostracodes and algae observed in thin sections. Planktic foraminifera indicate deposition occurred in the early Danian Parvularugoglobigerina eugubina (P1a) zone shortly after deposition of the lower trap flows. The most diverse planktic assemblages were deposited in limestones of the middle intertrappean interval and indicate an upper P1a age, or subzone P1a(2), as marked by the co-occurrence of P. eugubina, Globoconusa daubjergensis, Parasubbotina pseudobulloides and Subbotina triloculinoides. Reworked late Maastrichtian planktic foraminifera are common in a limestone interval and suggest erosion of uplifted Cretaceous sediments. Benthic foraminiferal assemblages indicate deposition occurred predominantly in shallow inner shelf to brackish environments. Similarly, ostracodes indicate variable environments ranging from inner neritic to brackish with fresh water influx, as also indicated by the presence of fresh water algae. These data confirm an overall deepening from restricted shallow marine to estuarine, lagoonal and finally open marine conditions followed by abrupt emersion and paleosoil deposition prior to the arrival of the upper trap flows at or near the base of C29n.Keywords
Foraminifera, Ostracodes, Danian, Intertrappean, Rajahmundry, Andhra Pradesh.- Sequence Stratigraphy of Soma Quarry Section, Near Gowripatnam, Rajahmundry Area, Andhra Pradesh
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Authors
Affiliations
1 Department of Geology, Bangalore University, Bangalore – 560 056, IN
2 Civil Engineering Department, Geology Division, Islamiah Institute of Technology, National Park Road, Bangalore – 560 076, IN
1 Department of Geology, Bangalore University, Bangalore – 560 056, IN
2 Civil Engineering Department, Geology Division, Islamiah Institute of Technology, National Park Road, Bangalore – 560 076, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 76, No 2 (2010), Pagination: 111-118Abstract
An attempt is made to work out the sequence stratigraphic frame work of Infra and Intertrappean beds exposed in Soma quarry section, near Gowripatnam, Rajahmundry area to understand the mode of depositional process in the basin by integrating litho and biostratigraphic data. The study documents the field data to recognize some of sequence parameters in the field. The sequence stratigraphic study shows the Sequence Boundary, Transgressive Systems Tract (TST), three shallowing upward sequence, Maximum Flooding Surface (MFS) and Highstand Systems Tract (HST) deposits got exposed as a result of basinal rise and fall.Keywords
Sequence Stratigraphy, Parasequences, Infratrappeans, Intertrappeans, Duddukuru, Rajahmundry, Andhra Pradesh.- A Journey to Cretaceous Period
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 76, No 6 (2010), Pagination: 638-638Abstract
No Abstract.- Barremian-Danian Chemostratigraphic Sequences of the Cauvery Basin
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Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 4 (2011), Pagination: 395-395Abstract
No Abstract.- Ophiuroid ossicles from the Kallankurichchi Formation (Maastrichtian) of Ariyalur Group, Tamil Nadu, India
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Authors
Affiliations
1 Department of Geology, Bangalore University, Bangalore-560056, IN
1 Department of Geology, Bangalore University, Bangalore-560056, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 53, No 2 (1999), Pagination: 233-238Abstract
This paper reports the finding of ophiuroid ossicIes in the Kallankurichchi Formation (Maastrichtian) of Ariyalur Group, Tamil Nadu. The material is rather ill preserved and represents indeterminate vertebrae, dorsal shields, possible genital bars and some questionable material of uncertain affinity. The palaeoecological implications of these ossicles on the Kallankurichchi Formation are discussed.Keywords
Palaeontology, Ophiuroid Ossicles, Maastrichtian, Ariyalur Group, Tamil Nadu.- Recent Research in Ediacaran Fauna
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