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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.

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