1995-96 - Birbal Sahni Institute of Palaeobotany
1995-96 - Birbal Sahni Institute of Palaeobotany
1995-96 - Birbal Sahni Institute of Palaeobotany
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<strong>1995</strong>-<strong>96</strong><br />
costatus, Quilonipollenites microreticulatus, Tricolpites retipilatus and Graminidites sp.<br />
On the basis <strong>of</strong> palyn<strong>of</strong>ossils the age <strong>of</strong> the sediments ranges from Oligocene to Lower<br />
Miocene. Ecological and morphotaxonomical evaluation <strong>of</strong> selected palyn<strong>of</strong>ossils were made.<br />
On the basis <strong>of</strong> modem analogues serveral ecological floral communities are identified.<br />
PROJECT 4<br />
R.S. Singh<br />
PHYTOPLANKTONBIOSTRATIGRAPHYOF MARINE SEDIMEN-<br />
TARIES OF INDIA<br />
Programme 4.1 Phytoplankton biostratigraphy <strong>of</strong> Cretaceous-Palaeogene<br />
sequences <strong>of</strong> South Shillong Plateau, Meghalaya with<br />
emphasis on time boundaries and palaeoceanography<br />
Objective To document lithological succession and facies variations in<br />
outcrop areas<br />
To study dinocyst morphology and biostratigraphy and to document<br />
phytoplankton rich levels<br />
To integrate dinocyst, calcareous plankton and palaeontological<br />
data for stratigraphic precision<br />
To carry out palyn<strong>of</strong>acies and organic petrographic studies<br />
To carry out oxygen isotope and geochemical studies across<br />
KIT boundary<br />
To attempt palaeoceanographic<br />
interpretations<br />
Stratigraphic distribution chart containing 47 species <strong>of</strong> calcarcous nann<strong>of</strong>ossils<br />
including typical Latc Cretaceous, KTB "survivors" and Danian specics is completed.<br />
Photodocumentation and idcntification <strong>of</strong> Early Danian nann<strong>of</strong>ossils belonging to NP I Zone<br />
is partly carried out.<br />
Palaeocene din<strong>of</strong>lagellate cyst assemblage obtained from the Langpar Formation<br />
and Lakadong sandstone, Khasi Hills have been studied in dctail. Photodocumentation and<br />
detailed morphological study <strong>of</strong> Latest Maastrichtian-Danian din<strong>of</strong>lagellate cyst genus<br />
Disphaerogena have been completed resolving its taxonomical intricacies. Study <strong>of</strong> Late<br />
Palaeocene (Thanetian) din<strong>of</strong>lagellate cyst assemblage assignable to standard Apectodinium<br />
hyperacanthum Zone is complcted.<br />
K.P. Jain, Rahul Garg & Khowaja-Ateequzamman<br />
Programme 4.2<br />
Objective<br />
Cretaceous phytoplankton biostratigraphy and<br />
palaeoceanographic set up <strong>of</strong> East Coast petroliferous basins<br />
To document lithological succession in outcrop areas<br />
To study dinocyst morphology, taxonomy and biostratigraphy<br />
To integrate phytoplankton data with palaeontological and sedimentological<br />
data<br />
To carry out palyn<strong>of</strong>acies study, document plankton-rich levels<br />
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