Refine your search
Collections
Co-Authors
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Pillai, S. S. K.
- IGMIS - a Computer-Aided Information System on Indian Gondwana Megaspores
Abstract Views :199 |
PDF Views:84
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226 007, IN
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226 007, IN
Source
Current Science, Vol 106, No 3 (2014), Pagination: 434-439Abstract
The Indian Gondwana Megaspore Information System (IGMIS) is an information system developed for storage and retrieval of Indian Gondwana megaspore (female reproductive unit of early land plants) records in a selective manner. At present, it provides information on 45 genera and 159 species recorded from Palaeozoic and Mesozoic sediments of India. The use of the database is to store and organize information on Indian Gondwana megaspores accrued over the past 70 years. This information system is a significant step towards ensuring safety and accessibility of the data on the dispersed Indian fossil megaspores, besides providing accessibility for handling the information in future, including new and emerging types of data format. Each record has a unique code number for further reference. Addition, deletion, modification and search facility are provided by this software. Additionally, search can be performed in terms of different morphotaxonomical characteristics (single or combination of characters). The program is useful for a quick and classified megaspore search on datagrid, especially of the published information on fossil megaspores and their horizontal and vertical distribution in India. The program and associated database are capable of computer-aided identification of Indian Gondwana megaspores and help avoid assigning multiple/different genera or species to the same category. Here we report our attempt to digitize and provide an updated knowledge on various aspects of Indian Gondwana megaspores, including their morphotaxonomical characters, distribution and photodocumentation in an information system.Keywords
Computer-Aided Information System, Distribution, Megaspores, Morphotaxonomical Characters, Photo-Documentation.- Late Permian and Triassic Palynomorphs from the Allan Hills, Central Transantarctic Mountains, South Victoria Land, Antarctica
Abstract Views :245 |
PDF Views:104
Authors
Ram Awatar
1,
Rajni Tewari
1,
Deepa Agnihotri
1,
Sankar Chatterjee
2,
S. S. K. Pillai
1,
K. L. Meena
1
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226 007, IN
2 Texas Tech University, Lubbock, Texas 79401, US
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226 007, IN
2 Texas Tech University, Lubbock, Texas 79401, US
Source
Current Science, Vol 106, No 7 (2014), Pagination: 988-996Abstract
Palynology is an established tool for age determination and correlation of sedimentary sequences. The palynomorphs retrieved from the Weller and Lashly formations of Allan Hills, central Transantarctic Mountains, South Victoria Land, Antarctica have been studied for precise age determination. Forty-five different groups of palynomorphs have been recovered from the Weller and Lashly formations. The palynoflora of Weller Formation shows dominance of striate bisaccate pollen taxa, mainly Striatopodocarpites, Faunipollenites (Protohaploxypinus), Crescentipollenites, Striatites and Verticipollenites in association with Horriditriletes, Cuneatisporites, Alisporites, Plicatipollenites, Gnetaecaepollenites, Sahnites, Tiwariasporis, Rhizomaspora, Pretricolpipollenites, Chordasporites and sporadic occurrence of Lundbladispora, Klausipollenites and Densoisporites. In the present study, a Late Permian age based on palynological evidences has been suggested for the Weller Formation, which was earlier assigned an Early Permian age. The Late Permian age of the Weller Formation is corroborated by similarity of its palynoassemblage with that of the Upper Stage-5 (Late Permian) of Australia. Additionally, the palynoflora of Weller Formation is comparable with the Late Permian palynoassemblages of India and South Africa. The younger palynoassemblage of the Lashly Formation contains Klausipollenites, Falcisporites and Alisporites in prominence and shows rare occurrence of Minutosaccus, Goubinispora, Lundbladispora, Densoisporites, Aulisporites and Chordasporites, indicating Early to Middle Triassic age and showing affiliation with Aratrisporites parvispinosus zone of Australia, Alisporites zone (A&B) of Feather Conglomerate and Fremouw Formation of Antarctica.Keywords
Allan Hills, Antarctica, Late Permian, Palynology, Triassic.- Occurrence of Vertebraria indica (Unger) Feistmantel, 1877 - An Evidence for Coal-Forming Vegetation in Kothagudem Area, Godavari Graben, Telangana
Abstract Views :273 |
PDF Views:122
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226 007, IN
2 D.A.V. (P.G.) College, Dehradun 248 001, IN
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226 007, IN
2 D.A.V. (P.G.) College, Dehradun 248 001, IN
Source
Current Science, Vol 108, No 3 (2015), Pagination: 330-333Abstract
No Abstract.- Permian Megaspores from Kuraloi Area, Ib-River Coalfield, Mahanadi Basin, Orissa
Abstract Views :178 |
PDF Views:0
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow - 226 007, IN
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow - 226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 74, No 6 (2009), Pagination: 669-678Abstract
Heterogenous megaspores recovered from the Upper Permian sediments of Kuraloi Area, Ib-River coalfield, have been systematically described. The megaspore assemblage includes seven genera with seventeen species viz. Bokarosporites rotundus, Banksisporites indicus, B. utkalensis, Biharisporites spinosus, Biharisporites sp. A, Biharisporites sp. B, Jhariatriletes baculosus, J. srivastavae, J. damudicus, Manumisporites distinctus, Singhisporites baculatus, S. radialis, S. surangei, Ramispinatispora indica, R. nautiyalii and Ramispinatispora sp. Additionally, a new species of Ramispinatispora viz. R. mahanadiensis has been identified. Associated spore pollen assemblages are suggestive of a Late Permian age corresponding to Raniganj/Kamthi Formation. Raniganj megaspores are known from Damodar and Godavari Basins. The newly recorded megaspore assemblage from the Ib-River coalfield is comparable to that of Raniganj/Kamthi Formation of Godavari Graben. The diversity in exosporium ornamentations indicates structural diversity. Moreover, their prolific presence ultimately points towards occurrence of heterosporous source vegetation in the area.Keywords
Megaspores, Raniganj, Ib-River Coalfield, Mahanadi Basin, Orissa.References
- BANERJI, J., KUMARAN, K.P.N. and MAHESHWARI, H. K.(1978) Upper Triassic sporae dispersae from the Tiki Formation-Megaspores from the Janar Nala Section, South Rewa Gondwana Basin. Palaeobotanist, v.33, pp.190-227.
- BHARADWAJ, D.C. and TIWARI, R.S. (1970) Lower Gondwana megaspores - A monograph. Palaeontographica, v.129, pp.1-70.
- GOSWAMI, S., SINGH, K.J. and CHANDRA, S. (2006) Pteridophytes from Lower Gondwana formations of the Ib-River coalfield, Orissa and their diversity and distribution in the Permian of India. Jour. Asian Earth Sci., v.28, pp.234-250.
- JHA, N. and TEWARI, R.(2003) Megaspores from Raniganj Formation of Mailaram Area, Godavari Graben, Andhra Pradesh, India. Phytomorphology, v.53, pp.141-156.
- JHA, NEERJA, TEWARI, R. and SALEEM, M. (2006) Occurrence of megaspores in the Lower Gondwana sediments of the Gundala area,Godavari Graben, A.P, India. Jour. Palaeotological Soc. India, v.51, pp.37-41.
- MAHESHWARI, H.K. and TEWARI, R.(1988) Megaspore biostratigraphy of the Gondwana. Palaeobotanist, v.36, pp.102-105.
- MAITI, A. (1994) The palynoassemblage zones of Raniganj Formation (Upper Permian) as revealed from the sub-surface study in Ib-River Coalfield, Sundergarh District, Orissa, India. 9th Int. Gond. Symp., Hyderbad 1994. Abstract, pp.12.
- MEENA, K.L. (1998) Palynological dating of sub-surface Kamthi sediments in Ib-river Coalfield, Orissa, India. Geophytology, v.27 (1 and 2), pp.107-108.
- MEENA, K.L. (1999) Late Barakar flora reported from Chaturdhara Nala Section from Ib-River Coalfield, Sundergarh, Orissa, India. Palaeobotanist, v.48 (2), pp.141-145.
- MEENA, K.L. (2000) Palynodating of sub-surface sediments of bore-hole IBH-6 in Ib-River Coalfield, Orissa, India. Geophytology, v.29 (1and 2), pp.111-113.
- MEENA, K.L. (2004) Palynology of surface sediments exposed in Basundhara Nala, Ib-River Coalfield, Sundargarh District, Orissa, India. Minetech, v.25(3), pp.12-17.
- PAL, A.K., CHAUDHURY, P.N., BOSE, S. and GHOSH, R.N. (1992) A Middle Triassic age for the Kamthi (Hingir) Formation of the Lower Gondwana Ib-Himgir Basin, Orissa, India; New Palaeobotanical evidence. Newsl. Stratigr., v.27 (1 and 2), pp.33-39.
- PANT, D.D. and MISHRA, S.N. (1986) On Lower Gondwana megaspores from India. Palaeontographica, v.198, pp.13-73.
- PATIL, R.S. and PREMCHAND, K. (2001) Megaspore genus Ancorisporites from the Barakar Formation (Lower Permian) of Godavari Valley Coalfield, Andhra Pradesh, India. In Proc. Nat. Seminar on Recent Advances in geology of coal and lignite basins of India. Geol. Surv. India Spec. Publ. No.54, pp.145-148.
- RAJA RAO, C.S. (1982) Coal resources of Tamil Nadu, Andhra Pradesh, Orissa and Maharashtra. Bull. Geol. Surv India, Ser. A., no.45, Coalfields of India, II 9-40.
- SINGH, K.J. and CHANDRA, S. (1990) Occurrence of Benlightfootia from the Ib-River Coalfield, Orissa. Palaeobotanist, v.38, pp.55-57.
- Singh, K.J. and Chandra, S. (1995) In-situ preserved Vertebraria axes in Ib-River coalfield Orissa. Curr. Sci., v.69(3) pp.228-229.
- SINGH, K.J. and CHANDRA, S. (1996) Plant fossils from the exposure near Gopal Prasad village, Talchir Coalfield Orissa with remarks on the age of the bed. Geophytology, v.26(1), pp.69-75.
- SINGH, K.J. and CHANDRA, S. (1999) The plant of Neomariopteris hughesii (Zeiller) Maithy. Palaeobotanist, v.48(3), pp.225-238.
- SINGH, K.J., GOSWAMI, S. and CHANDRA, S. (2006a) First report of genus Gangamopteris from Gondwana Sediments of Ib-River Coalfield, Orissa. Jour. Geol. Soc. India, v.68, pp.893-905.
- SINGH, K.J., GOSWAMI, S. and CHANDRA, S. (2006b) The genus Glossopteris from lower Gondwana Formations of Ib-River Coalfield, Orissa, India. Jour. Palaeotological Soc. India, v.51(2), pp.81-107.
- SINGH, K.J., GOSWAMI, S. and CHANDRA, S. (2006c) Megafloral Assemblage similar to Karharbari biozone from Talchir coalfield of Mahanadi Basin, Orissa. Journal Geological Society of India, v.68, pp.277-287.
- SINGH, K.J., GOSWAMI, S. and CHANDRA, S. (2007) Occurrence of Cordaitales from Lower Gondwana sediments of Ib-River Coalfield, Orissa, India - An Indian Scenario. Jour. Asian Earth Sci., v.29, pp.666-684.
- SRIVASTAVA, A.K. and TEWARI, R. (2001) Two new types of megaspore from Permian Gondwana Sequence of India. Permophiles, v.39, pp.28-31.
- Srivastava, A.K. and Tewari, R.(2002) A new gulate megaspore from the Satpura Gondwana Basin. Jour. Palaeontol. Soc. India, v.47, p.93-96.
- SRIVASTAVA, A.K. and TEWARI, R. (2004) Megaspore assemblage from Pench Valley Coalfield, Madhya Pradesh, India.Geophytology, v.34, pp.57-64.
- TEWARI, R. (1991) A catalogue of fossil plants from India-B. Palaeozoic and Mesozoic megaspores, pp.1-7, Birbal Sahni Institute of Palaeobotany, Lucknow, India
- TEWARI, R., JHA NEERJA and SALEEM, M. (2007) Permian megaspores from Kachhinapalli Area, Gondwana Graben, India. Phytomorphology, v.57, pp.1-12.
- TEWARI, R. and MAHESHWARI, H.K. (1992) Megaspores from Early Permian of India, Geophytology, v.21, pp.1-19.
- TEWARI, R. RAJANIKANTH, A. and JHA NEERJA (2004) Permian Gondwana megaspores from Wardha Basin, India. Palaeobotanist, v.53, pp.35-50.
- TRIPATHI, R.P. (1997) Srivastavaesporites sahnii sp. nov. A Permian megaspore from South Rewa Basin, India. Jour. Palynology, v.33, pp.219-225.
- Tripathi, R.P. (1998a) Singraulispora indica Pant and Mishra from Umaria Coalfield of Madhya Pradesh, India. Jour. Indian Bot. Soc., v.77, pp.43-46.
- TRIPATHI, R.P. (1998b) Singhisporites obesus sp. nov. - A Permian megaspore from Johilla River Bed, Shahdol District, Madhya Pradesh, India. Indian Fern Jour., v.15, pp.71-74.
- TRIPATHI, R.P. (1999) Saksenasporites gen. nov. - A Permian megaspore from Birsinghpur Pali, Madhya Pradesh. Palaeobotanist, v.48, pp.131-135.
- TRIPATHI, R.P. and MISHRA, S.N. (1997) Singraulispora saksenae n. sp. A Permian megaspore from Umaria Coalfield, Shahdol district, Madhya Pradesh, India. Jour. Palynology, v.33, pp.165-172.
- TRIPATHI, R.P. and MISHRA, S.N. (2001) Lageniculate megaspores from the Lower Gondwana sediments of Madhya Pradesh, India. Jour. Palaeontological Soc. India, v.46, pp.37-42.