1996-97 - Birbal Sahni Institute of Palaeobotany
1996-97 - Birbal Sahni Institute of Palaeobotany
1996-97 - Birbal Sahni Institute of Palaeobotany
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BSIP<br />
<strong>of</strong> calcareous skeletal algae in all about 110 samples <strong>of</strong> coralline limestones were<br />
collected from Harudi, Waior, Akri Mota, Bare Moti, Bare Nani, Maniara Fort and<br />
Babia Hill sections <strong>of</strong> Kutch District and Bet Dwarka section <strong>of</strong> Jamnagar District. A<br />
variety <strong>of</strong> modern algae were collected from the sea shores <strong>of</strong> Okha and Dwarka.<br />
PROJECT 2<br />
Programme 2.1<br />
GONDWANA COAL AND ASSOCIATED SEDIMENTS :<br />
GENESIS, FLORAL EVOLUTION AND BIOSTRATIGRA<br />
PHY<br />
Morphotaxonomy, floristics, evolution and stratigraphic<br />
significance <strong>of</strong> plant fossils in Koel Valley and Jharia<br />
Coalfield<br />
A.K. Srivastava<br />
The Talchir eedle shales exposed in Jaitri River and Kumandih Nala, Auranga<br />
Coalfield were studied. The flora shows the presence <strong>of</strong> Gangamopteris-Glossopteris<br />
association alongwith specimens <strong>of</strong> Noeggerathiopsis (Gangamopteris cyclopteroides,<br />
G. major, G. angustijolia, Glossopteris communis. G. angustijolia, G. indica, G.<br />
decipiens (7) and N. hislopii).<br />
Samples studied from the section exposed near Bendi Railway Station contain<br />
6 species <strong>of</strong> Glossopteris and number <strong>of</strong> specimens <strong>of</strong> Trizygia speciosa. The flora<br />
shows its comparison with the flora <strong>of</strong> Raniganj Formation.<br />
Morphotaxonomy <strong>of</strong> plant fossils recovered from the Barakar Formation in<br />
South Jharia (Area I) and Bird Moodidih (Area 5) collieries and Barren Measures<br />
Formation in Katri Nala Section <strong>of</strong> Jharia Coalfield were studied. The flora is represented<br />
by the dominance <strong>of</strong> Glossopteris spp., e.g., G. damudica, G. arberi, G. senii, G.<br />
angusta. G. OIzgustijolia, G. tenuijolia, G. stenoneura, G. communis, G. indica, G.<br />
sub,ili", G. spathulata, G. intermedia. G. syaldiensis and Glossopteris sp. The flora<br />
from Barakar Formation also shows the presence <strong>of</strong> Noeggerathiopsis hislopii and<br />
fragmentary specimen <strong>of</strong> Sphenophyllum. The genus, Cyclodendron, reported earlier<br />
in Barren Measures, is not recorded in the present investigation. However, comparison<br />
<strong>of</strong> the flora from known assemblages indicates that number <strong>of</strong> Glossopteris species<br />
recorded in the assemblage range in their vertical distribution right from Barakar to<br />
Raniganj Formations.<br />
Programme 2.2 : Comparative morphology, floristics, biostratigraphy and<br />
palaeoecology <strong>of</strong> Permian Gondwana plants in Son<br />
Mahanadi Graben<br />
Shaila Chandra & K.J. Singh<br />
SEM studies <strong>of</strong> conifer cuticles from South Belanda Colliery, Talcher Coalfield<br />
were completed.<br />
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