AR 1978-79.pdf - Birbal Sahni Institute of Palaeobotany
AR 1978-79.pdf - Birbal Sahni Institute of Palaeobotany
AR 1978-79.pdf - Birbal Sahni Institute of Palaeobotany
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14<br />
B. Palynostratigraphy <strong>of</strong> Western Ghats (around Varkala &<br />
Quilon)-Morphotaxonomy <strong>of</strong> spores and pollen grains from<br />
Varkala and Quilon has been completed. It includes 44<br />
genera and 56 species. Morphotaxonomical study <strong>of</strong> din<strong>of</strong>lagellates<br />
was continued.<br />
4.2.6. Palynostratigraphy <strong>of</strong> Neogene sediments <strong>of</strong> Kutch<br />
Spores, pollen grains and microplanktons have been<br />
recovered from the Khari ='Jandi Formation (?diocene) in<br />
Kutch, Gujarat. Megaspore and massuJa containing micro·<br />
spore <strong>of</strong> fossil Azolla have been described as A. aglochidia sp.<br />
novo<br />
4.3. Tertiary from. Abroad<br />
A. A paper on a fossil palm wood from the Tertiary <strong>of</strong><br />
Gerffiany was finalized.<br />
B. Eight types <strong>of</strong> fossil dicot woods from the Tertiary<br />
<strong>of</strong> Zaire were tentatively assigned to the families I\.1eliaceae,<br />
Leguminosae, Simaroubaceae and Burseraceae.<br />
5. QUATERN<strong>AR</strong>Y<br />
5.1. Pollen morphology<br />
Six hundred and fifty pollen slides <strong>of</strong> 137 taxa from<br />
Lahaul and Spiti and 100 slides <strong>of</strong> 20 taxa from i'\iigiri,<br />
were prepared. Pollen morphology <strong>of</strong> nearly 370 taxa from<br />
Lahaul-Spiti, Nilgiris and Rajasthan was done and quite a<br />
number <strong>of</strong> them were photographed. The data were<br />
utilized to improve upon and extend the pollen keys for the<br />
high altitude flora (Ladakh, Lahaul & Spiti), Rajasthan<br />
and Nilgiris. A Pollen Key has also been prepared for<br />
Gujarat area.