1991-92 - Birbal Sahni Institute of Palaeobotany
1991-92 - Birbal Sahni Institute of Palaeobotany
1991-92 - Birbal Sahni Institute of Palaeobotany
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<strong>1991</strong>-<strong>92</strong>,To establish data-base for identification and retrieval<strong>of</strong> palynotaxaUpdation <strong>of</strong> data bank for Palaeozoic and Mesozoic palynology and relatedaspects has been done.(Group effort PGGP Department as per Programme <strong>of</strong> Work)For finer zonations <strong>of</strong> Permian to Early Cretaceous assemblages the speciesrange charts have been prepared for Damodar and Rajmahal Basin. On the basis<strong>of</strong> FADs, LADs and species composition ninteen Marker Assemblage-zones <strong>of</strong>spore-pollen species have been proposed. Besides,thirty species Acme-zones havebeen recognised on the basis <strong>of</strong> epibole <strong>of</strong> number <strong>of</strong> species in a genusR.S.Tiwari and Archana TripathiSpecies range charts have been prepared for Early Permian horizons in TalcherCoalfield.Programme 9.2: Gondwana nora <strong>of</strong> IndiaArchanaTripathiObjective,To write a reference book on the GondwanaplantsCompilation <strong>of</strong> data on Lower Gondwana ferns is being finalized.S. ChandraCompilation <strong>of</strong> data on Upper Gondwana maratliaceous, matoniaceous,gleicheniaceous, schizaeaceous, osmundaceous and dipteridaceous remains hasbeen done.Programme 9.3JayasriBanerji,A catalogue <strong>of</strong> fossil din<strong>of</strong>lagellates from IndiaObjective,Morphological re-interpretation and documentation<strong>of</strong> published dataThe resludy <strong>of</strong> holotypes <strong>of</strong> eighteen "algal microplanklOn" taxa, describedfrom Malanomadh Formation (Palaeocene) <strong>of</strong> Kutch by Kar and Saxena (1976) andfrom Palana lignite (Eocene) <strong>of</strong> Bikaner, Rajasthan by Sah and Kar (1974) hasrevealed that most <strong>of</strong> them are based on biodegraded pieces <strong>of</strong> organic debris <strong>of</strong>unidentifiable nature. They do not show any features <strong>of</strong> organic-walled din<strong>of</strong>lagellatecysts or acritarchs. Two "MicroplanklOn" species, viz., Octoplata palanaensisSah & Kar (1974) and 0. rotunda Sah & Kar (1974) are based on a trilete sporeand an angiospermous pollen respectively. Whereas Leioplanktona madhensis Kar& Saxena ( 1976) appears to be a mineral grain. It is recommended that these socalled "microplankton" taxa must be rejected and should not be considered for anypalynostratigraphic analysis.K.P. Jain, Rahul Garg and Khowaja-AteequzzamanProgramme 9.6 , An Atlas <strong>of</strong> ungiospermic pollen taxa from49
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