Palynology of Middle Tertiary lacustrine deposits
Palynology of Middle Tertiary lacustrine deposits
Palynology of Middle Tertiary lacustrine deposits
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<strong>Palynology</strong> <strong>of</strong> <strong>Middle</strong> <strong>Tertiary</strong> <strong>lacustrine</strong> <strong>deposits</strong> 231<br />
Description: Globular tricolporate pollen grain. With relatively short colpi in radial<br />
symmetrical arrangement. Exine four (?)-layered, 3.5 ,urn thick, finely punctate on<br />
the outer surface; ectexine baculate. Ora slightly elongated equatorially.<br />
Measurements: 26 X 26 ,urn in equatorial diameter.<br />
Remarks: The single specimen is very similar to the genus Euphorbiacites.<br />
Botanical affinity: ? Euphorbiaceae.<br />
Genus Faguspollenites Raatz 1937 ex R. Potonie 1960.<br />
Type species: Faguspollenites verus Raatz 1937.<br />
Faguspollenites globosus n. sp.<br />
PI. 26, figs. 7 -10.<br />
Diagnosis: Tricolporate pollen <strong>of</strong> spherical shape. Three narrow colpi moderately<br />
short and with large, round pores in radial symmetry. Exine two-layered, finely<br />
punctate on outer surface but intrabaculate in optical section,<br />
Mesurements: 38-49 ,urn in length.<br />
38 - 45 pm in width.<br />
1 - 2.5 pm thick.<br />
Width / length ratio: O. 92 - 1. 0 or (> 1. 0) .<br />
Holotype: PI. 26, figs. 8 a - b; 42 pm in equatorial diameter; exine intrabaculate, 1<br />
,urn thick; pores large, circular; no. <strong>of</strong> specimen: Jos 1 - 8 (GN 5328).<br />
Name derivation: globosus (lat.) = globular.<br />
Remarks: The Jos specimens are similar to the European Faguspollenites verus Raatz<br />
as well as the Korean Faguspollenites koraiensis Takahashi and Faguspollenites<br />
sphaericus Takahashi, but they differ from F. verus in their larger size, from F.<br />
koraiensis in their sculpture and intrabaculate structure, and again F. sphaericus in a<br />
larger size.<br />
Botanical affinity: Fagaceae, Fagus.<br />
Genus Intrabaculitricolporites Kedves 1978.<br />
Type species: Intrabaculitricolporites porasper (Pflug 1953) Kedves 1978.<br />
Intrabaculitricolporites rotundiporosus n. sp.<br />
pI. 27, figs. 1 - 9; pI. 28, fig. 11;<br />
pI. 29, fig. 15.<br />
Diagnosis: Tricolporate pollen <strong>of</strong> globular shape. Three narrow colpi, rather tenuous,<br />
radially symmetrical, converge at the apices; pores large and rounded eventually<br />
somewhat oblongated equatorially. Exine two-layered, 1 -2.5 pm thick; ectexine
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