Genus UmkomasiaThomas 1933 Order Peltaspermales | Family †Corystospermaceae Phylum †Pteridospermophyta | |
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Similar Corystospermales, Dicroidium, Corystospermaceae, Peltaspermales, Lepidopteris |
Umkomasia is a genus of seed ferns (Pteridospermophyta), and first based on fossils collected by Hamshaw Thomas from the Burnera Waterfall locality near the Umkomaas River of South Africa He recognized on the basis of cuticular similarities that the same plant produced pollen organs Pteruchus and the leaves Dicroidium
Contents
Description
Umkomasia has helmet like cupules around ovules born in complex large branching structures.
Whole plant associations
References
Umkomasia Wikipedia(Text) CC BY-SA