1991-92 - Birbal Sahni Institute of Palaeobotany
1991-92 - Birbal Sahni Institute of Palaeobotany 1991-92 - Birbal Sahni Institute of Palaeobotany
BSIP";jEuryphy/lum whilt;anum Feistmantel (rom TalchirCoalfield, Orissa.plants in Son-Mahanadi GrabenObjective: To study morphotaxonomy, [loristics, biostratigraphyand palaeoclimate of the Permian Gondwana formationsin the area: To study fructifications in order to understand theevolutionary aspect of Pteridophytes and Gymnosperms: To establish palaeobotanical succession in theSingrauli Coalfield areaA plant fossil assemblage from Gopal Prasad locality in Thlcher Coalfield wasstudied. The assemblage includes Glossopteris karanpuraensis, G. communis, G.subtili, G. indica, G. retifera, G. gigas, G. leptoneura, G. arberi, G.tenuifoiia, G.14
1991-92•conspicua, G. nimishea, G. vulgaris, G. browniana, Dichotomopteris sp.,Neomariopteris hughesii and Schizoneura gondwanensis. Plant fossils indicate LatePermian age.Programme 2.3ObjectiveShaila Chandra and K. J. Singh: Evolutionary perspective of meganoral diversificationin the Nidl'ur plant bed: To carry out fine resolution morphotaxonomicalinvestigations and decipher affinities and interrelationof different plant organs: To attempt whole plant reconstructionsTho genera, viz., Pterophyllum and Pseudoctenis have been studied for theirmorphographic tharacters. The specimens of Rhabdotaenia are also being studiedin order to find out its precise affiliations.Fertile organs have also been studied and among these the finding of themegasporophy II is quite significant because it shows its affinity with the Cycadales.Shyam C. Srivastava and S.R. ManikProgramme 2.4 : Palynostratigraphy of Gondwana Sequence inSon-Mahanadi Graben•Objective: To systematically collect samples and to analysepalynoassemblages with a view to interpret floralchanges, boundary transitions and agedetermination at a finer level in the intraformationalsuccession of Johilla Coalfield: To identify Talcher/Athgarh relationship in theTalcher Coalfield and Athgarh BasinPalynological analysis of bore-hole SPB-18 from Middle Pali sequence nearBurhar area, Sohagpur Coalfield shows a Late Permian palynoassemblage whichreveals a closer relation with the assemblage from Raniganj Formation. Presenceof Leiosphaeridia in few samples indicates a probable marine influence in this area.So far, the samples from Lower Pari proved to be barren. Processing of the samplesfrom bore-hole SPB-14 has been completed.Ram-AwatarThe palynological analysis of samples from 450 m deep bore-hole TCW-25 inthe northern part of the Thlcher Coalfield has revealed the presence of three• distinct palynoassemblages based on FADs, LADs and pattern of species distribution.They are comparable to the Marker Assemblage-Zones identified inDamodar-Rajmahal area. The lowermost assemblage -Parasaccites korbaensisAssemblage-Zone represents the Upper Thlchir, and Scheuringipollenitesbarakarensis Assemblage-Zone and Faunipollenites varius Assemblage-Zone representLower and Upper Barakar, respectively. The palynological observations forclimatically sensitive morphological characters reveal a relatively cooler climate15
- Page 3 and 4: Birbal Sahni (1891-1949)ANNUAL REPO
- Page 5 and 6: AcknowledgementWe are grateful to t
- Page 8 and 9: To coordinate with other knowledge
- Page 10 and 11: posed, which incorporates most of p
- Page 12 and 13: 1991-92BIRBAL SAHNIBIRTH CENTENARY
- Page 14 and 15: BSIP-----Dr B. S. Venkatachala welc
- Page 16 and 17: BSIPDr A. P. Mitra opening the Exhi
- Page 18 and 19: BSIPDelegates of the Symposium - Ev
- Page 20 and 21: BSIPThe Palaeobotanical Society Int
- Page 22 and 23: BSIPGeneral, Geological Survey of I
- Page 24 and 25: BSlPin Proterozoic succession of Cu
- Page 28 and 29: BSIPin Mahanadi Valley in compariso
- Page 30 and 31: BSIP----Au st raIia----
- Page 32 and 33: BSIPbeen observed tijat the coals a
- Page 34 and 35: BSIPTransverse Section of a monocot
- Page 36 and 37: BSIPular fruit of euphorbiaceousaff
- Page 38 and 39: BSIPMARINE SEDIMENTARIES OF INDIA1'
- Page 40 and 41: BSIPH10~mTrichodinium brel'ispillos
- Page 42 and 43: BSIPand time boundaries: To integra
- Page 44 and 45: BSIPmarine innuence during Karharba
- Page 46 and 47: BSIPIn the light of the distributio
- Page 48 and 49: BSIP,To palynologically differentia
- Page 50 and 51: BSIPMeghalaya have yielded a rich s
- Page 52 and 53: BSIPbetween 1002-944 m show an almo
- Page 54 and 55: BSIPTetraploa and Microthyriaceaear
- Page 56 and 57: BSIPand a 745 year long (1,243-1,98
- Page 58 and 59: BSIPclinicalimplicationsObjective ,
- Page 60 and 61: BSIPThe Auto Scan system for the fi
- Page 62 and 63: BSIPthe Indian Tertiary sedimentsOb
- Page 64 and 65: BSIPM.S. ChauhanPart-7Part-8Part-9P
- Page 66 and 67: BSIPB.K. MisraAnand PrakashG.K.B. N
- Page 68 and 69: BSIPStudied the pollen morphology (
- Page 70 and 71: BSIPremains based on field and herb
- Page 72 and 73: BSIPPapers SubmittedAgarwal, Anil -
- Page 74 and 75: BSIPKapoor, U.M., Maheshwari, U.K.
<strong>1991</strong>-<strong>92</strong>•conspicua, G. nimishea, G. vulgaris, G. browniana, Dichotomopteris sp.,Neomariopteris hughesii and Schizoneura gondwanensis. Plant fossils indicate LatePermian age.Programme 2.3ObjectiveShaila Chandra and K. J. Singh: Evolutionary perspective <strong>of</strong> meganoral diversificationin the Nidl'ur plant bed: To carry out fine resolution morphotaxonomicalinvestigations and decipher affinities and interrelation<strong>of</strong> different plant organs: To attempt whole plant reconstructionsTho genera, viz., Pterophyllum and Pseudoctenis have been studied for theirmorphographic tharacters. The specimens <strong>of</strong> Rhabdotaenia are also being studiedin order to find out its precise affiliations.Fertile organs have also been studied and among these the finding <strong>of</strong> themegasporophy II is quite significant because it shows its affinity with the Cycadales.Shyam C. Srivastava and S.R. ManikProgramme 2.4 : Palynostratigraphy <strong>of</strong> Gondwana Sequence inSon-Mahanadi Graben•Objective: To systematically collect samples and to analysepalynoassemblages with a view to interpret floralchanges, boundary transitions and agedetermination at a finer level in the intraformationalsuccession <strong>of</strong> Johilla Coalfield: To identify Talcher/Athgarh relationship in theTalcher Coalfield and Athgarh BasinPalynological analysis <strong>of</strong> bore-hole SPB-18 from Middle Pali sequence nearBurhar area, Sohagpur Coalfield shows a Late Permian palynoassemblage whichreveals a closer relation with the assemblage from Raniganj Formation. Presence<strong>of</strong> Leiosphaeridia in few samples indicates a probable marine influence in this area.So far, the samples from Lower Pari proved to be barren. Processing <strong>of</strong> the samplesfrom bore-hole SPB-14 has been completed.Ram-AwatarThe palynological analysis <strong>of</strong> samples from 450 m deep bore-hole TCW-25 inthe northern part <strong>of</strong> the Thlcher Coalfield has revealed the presence <strong>of</strong> three• distinct palynoassemblages based on FADs, LADs and pattern <strong>of</strong> species distribution.They are comparable to the Marker Assemblage-Zones identified inDamodar-Rajmahal area. The lowermost assemblage -Parasaccites korbaensisAssemblage-Zone represents the Upper Thlchir, and Scheuringipollenitesbarakarensis Assemblage-Zone and Faunipollenites varius Assemblage-Zone representLower and Upper Barakar, respectively. The palynological observations forclimatically sensitive morphological characters reveal a relatively cooler climate15
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