Supriya Ghosh (Editor)

Umkomasia

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Kingdom
  
Plantae

Genus
  
Umkomasia Thomas 1933

Order
  
Peltaspermales

Family
  
†Corystospermaceae

Phylum
  
†Pteridospermophyta

Umkomasia httpsuploadwikimediaorgwikipediacommonsthu

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

  • Umkomasia feistmantelii from the Early Triassic of Australia may have been produced by the same plant as Pteruchus barrealensis (pollen organs) and Dicroidium zuberi (leaves)
  • Umkomasia macleanii from the Late Triassic of South Africa may have been produced by the same plant as Pteruchus africanus (pollen organs) and Dicroidium odontopteroides (leaves)

    • References

    Umkomasia Wikipedia
    (Text) CC BY-SA


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