Retispora lepidophyta explained

Retispora lepidophyta is a spore type and an important biostratigraphic marker of the latest Devonian period.[1] [2] [3] The last appearance of Retispora lepidophyta defines the Devonian-Mississippian boundary in Belgium and other places.

Description

Retispora is trilete, reticulate, and has a distinctly "fried egg" appearance, as the spore is zonate, and the inner area is much darker than the outer area.

Notes and References

  1. Biometry and paleoenvironment of Retispora lepidophyta (Kedo) Playford 1976 and associated miospores in the latest Famennian nearshore marine facies, eastern Ardenne (Belgium) . Maziane . Nadia . Higgs . Kenneth T. . 2002-04-01 . Review of Palaeobotany and Palynology . 118 . 1–4 . 211–226 . 10.1016/S0034-6667(01)00115-4 . Streel . Maurice.
  2. Web site: The Retispora lepidophyta morphon and its stratigraphic significance . ResearchGate . 2019-07-22.
  3. Leaf evolution in early-diverging ferns: insights from a new fern-like plant from the Late Devonian of China . Annals of Botany. 115. 7. Wang . De-Ming . Xu . Hong-He . June 2015 . 1133–1148 . 10.1093/aob/mcv049 . 4648459 . 25979918 . Xue . Jin-Zhuang . Wang . Qi . Liu . Le.

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