Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

Mallikarjuna, U. B.

• Ostracode Fauna of the Niniyur Formation (Palaeocene), Cauvery Basin, Tamil Nadu, Southern India

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Authors

U. B. Mallikarjuna ¹

Affiliations
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: 561-578

Abstract

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.

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• Ostracodes from the Ariyalur Group (Late Cretaceous), Cauvery Basin, Southern India

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Authors

U. B. Mallikarjuna ¹, H. M. Nagaraja ¹

Affiliations
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: 189-201

Abstract

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.

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• New Report of Palaeontological Interest

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Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 71, No 4 (2008), Pagination: 601-601

Abstract

No Abstract.

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• 5^th International Conference on 'Environmental Micropalaeontology, Microbiology and Meiobenthology', Chennai, India

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Authors

U. B. Mallikarjuna ¹

Affiliations
1 Bangalore, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 71, No 5 (2008), Pagination: 752-752

Abstract

No Abstract.

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• The Cretaceous System in the Makarov Area, Southern Sakhalin, Russian Far East

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Authors

U. B. Mallikarjuna ¹

Affiliations
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: 1135-1135

Abstract

No Abstract.

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• New Palaeontological Papers of Interest

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Authors

U. B. Mallikarjuna ¹

Affiliations
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: 875-875

Abstract

No Abstract.

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• National Workshop on Sequence Stratigraphy

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Authors

U. B. Mallikarjuna ¹

Affiliations
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: 375-376

Abstract

No Abstract.

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• H.M. Nagaraja (1949-2002)

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Authors

U. B. Mallikarjuna ¹

Affiliations
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: 503-503

Abstract

No Abstract.

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• The Complete Encyclopedia of Fossils

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Authors

U. B. Mallikarjuna ¹

Affiliations
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: 1123-1123

Abstract

No Abstract.

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• Palaeoenvironmental Significance of Trace Fossils from the Palaeocene Sediments of the Pondicherry Area, South India

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Authors

N. Malarkodi ¹, S. J. Patel ², P. J. Fayazudeen ¹, U. B. Mallikarjuna ³

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

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 74, No 6 (2009), Pagination: 738-748

Abstract

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.

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References

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• Proceedings of Sixth European Ostracodologists' Meeting

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Authors

U. B. Mallikarjuna ¹

Affiliations
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: 299-300

Abstract

No Abstract.

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• Palaeobiogeographical Insights on Continental Vertebrate Fossil Record from India

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Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 2 (2010), Pagination: 457-457

Abstract

No Abstract.

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• Microbiota from Precambrian and Mesoproterozoic Rocks of India - Recent Studies

Abstract Views :158  |  PDF Views:111

Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 2 (2010), Pagination: 458-458

Abstract

No Abstract.

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• Special Issue on Applied Micropalaeontology

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Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 1 (2011), Pagination: 102-102

Abstract

No Abstract.

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• Ammonite Biostratigraphy of the Spiti Shales Formation

Abstract Views :168  |  PDF Views:127

Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 76, No 1 (2010), Pagination: 99-99

Abstract

No Abstract.

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• Model Study of a Cretaceous-Paleocene Basin, West Greenland

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Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 5 (2010), Pagination: 775-775

Abstract

No Abstract.

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• 3.2 Billion-Year-Old Organic-Walled Microfossils

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Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 5 (2010), Pagination: 775-775

Abstract

No Abstract.

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• Foraminifera from the Early Danian Intertrappean Beds in Rajahmundry Quarries, Andhra Pradesh

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Authors

N. Malarkodi ¹, G. Keller ², P. J. Fayazudeen ¹, U. B. Mallikarjuna ³

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

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 6 (2010), Pagination: 851-863

Abstract

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.

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• Sequence Stratigraphy of Soma Quarry Section, Near Gowripatnam, Rajahmundry Area, Andhra Pradesh

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Authors

N. Malarkodi ¹, U. B. Mallikarjuna ²

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

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 76, No 2 (2010), Pagination: 111-118

Abstract

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.

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• A Journey to Cretaceous Period

Abstract Views :259  |  PDF Views:156

Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 76, No 6 (2010), Pagination: 638-638

Abstract

No Abstract.

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• Barremian-Danian Chemostratigraphic Sequences of the Cauvery Basin

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Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 4 (2011), Pagination: 395-395

Abstract

No Abstract.

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• Ophiuroid ossicles from the Kallankurichchi Formation (Maastrichtian) of Ariyalur Group, Tamil Nadu, India

Abstract Views :159  |  PDF Views:2

Authors

U. B. Mallikarjuna ¹, S. Sugumaran ¹, H. M. Nagaraja ¹

Affiliations
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: 233-238

Abstract

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.

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• Recent Research in Ediacaran Fauna

Abstract Views :198  |  PDF Views:160

Authors

U. B. Mallikarjuna

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 78, No 3 (2011), Pagination: 294-294

Abstract

No Abstract.

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