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New details on the morphology of fossil onagraceous pollen grains |
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| Authors: | Reinhard Zetter Christian Keri |
| Institution: | (1) Inst. f. Paläontologie (Paläobotanik), Universitätsstrasse 7/2, A-1010 Wien, Austria;(2) Inst. f. Botanik, Rennweg 14, A-1030 Wien, Austria |
| Abstract: | Fossil onagraceous pollen grains from two Upper Miocene localities in E. Austria were investigated by LM and EM. Exine structure and sculpture as well as viscin threads suggest affinities with the extant genusCircea. |
| Keywords: | Angiosperms Onagraceae Corsinipollenites oculusnoctis parvus Fossil pollen grains pollen grain ultrastructure viscin threads |
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