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Retispora lepidophyta
Spore type and an important biostratigraphic marker of the latest Devonian period From Wikipedia, the free encyclopedia
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Retispora lepidophyta is a spore type and an important biostratigraphic marker of the latest Devonian period.[3][4][5] The last appearance of Retispora lepidophyta defines the Devonian-Mississippian boundary in Belgium and other places.
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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.[2]
References
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