Retispora lepidophyta
Spore type and an important biostratigraphic marker of the latest Devonian period
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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.
| Retispora lepidophyta | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Lycophytes |
| Class: | Lycopodiopsida |
| Order: | Selaginellales |
| Family: | incertae sedis |
| Genus: | †Retispora |
| Species: | †R. lepidophyta |
| Binomial name | |
| †Retispora lepidophyta (Kedo) Playford | |
| Synonyms | |
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]
