Palynology of Middle Tertiary lacustrine deposits
Palynology of Middle Tertiary lacustrine deposits
Palynology of Middle Tertiary lacustrine deposits
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256 K. TAKAHASHI & U. lux<br />
PI. 15, fig. 13.<br />
Description: Monoporate pollen grain. Figura oval. Exine laevigate, 0.5 f-lm thick.<br />
Pore small, 2.3 f-lm in diameter, without annulus.<br />
Measurements: 12 X 9 f-lm in diameter.<br />
Remarks: The only specimen observed is unusually small and has a pore without annulus.<br />
Botanical affinity: Gramineae.<br />
Graminidites sp. b<br />
(no figure)<br />
Description: Monoporate pollen grain. Figura spheroidal. Exine chagrenate, thin.<br />
Pore circular, 4 f-lm in diameter; a feeble annulus is developed.<br />
Measurements: 25 X 21 f-lm in diameter.<br />
Remarks: The only specimen observed differs from G. laevigatus and G. oligocaenus<br />
in both a larger pore and a narrower annulus.<br />
Botanical affinity: Gramineae.<br />
Genus Echigraminidites Krutzsch 1970.<br />
Type species: Echigraminidites moravicus Krutzsch 1970.<br />
Echigraminidites sp.<br />
PI. 20, figs. 6a-b.<br />
Description: Monoporate pollen <strong>of</strong> oval shape. Exine thin with a loose echinate<br />
sculpture; spines: 3 -3.5 f-lm long and 2.5 f-lm wide. Pore small, 3 f-lm in diameter,<br />
with conspicuous annulus.<br />
Measurements: 25 X 21 f-lm in diameter.<br />
Remarks: The only specimen observed is similar to Echigraminidites moravicus Kr.<br />
from the Early Pliocene <strong>of</strong> Hodonin, CSSR, but differs in its larger spines.<br />
Botanical affinity: Unknown.<br />
Subturma Diporines Naumova 1937 emend. Potonie 1960.<br />
Genus Psilodiporites Varma & Rawat 1963.<br />
Type species: Psilodiporites hammenii Varma & Rawat 1963.<br />
Psilodiporites rotundus n. sp.<br />
PI. 15, figs. 14 - 15.
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