Retispora lepidophyta

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 Edit this 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
  • Hymenozonotriletes lepidophytus[1]
  • Spelaeotriletes lepidophytus.[2]

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
  1. Owens, B.; Streel, M. (March 1967). "Hymenozonotriletes lepidophytus Kedo, its distribution and significance in relation to the Devonian-Carboniferous boundary". Review of Palaeobotany and Palynology. 1 (1–4): 141–150. doi:10.1016/0034-6667(67)90116-9. hdl:2268/142122. ISSN 0034-6667.
  2. Traverse, Alfred (1988). Paleopalynology. Unwin Hyman. ISBN 978-0045610013. OCLC 17674795.
  3. Maziane, Nadia; Higgs, Kenneth T.; Streel, Maurice (2002-04-01). "Biometry and paleoenvironment of Retispora lepidophyta (Kedo) Playford 1976 and associated miospores in the latest Famennian nearshore marine facies, eastern Ardenne (Belgium)". Review of Palaeobotany and Palynology. ScienceDirect. 118 (1–4): 211–226. doi:10.1016/S0034-6667(01)00115-4.
  4. "The Retispora lepidophyta morphon and its stratigraphic significance". ResearchGate. Retrieved 2019-07-22.
  5. Wang, De-Ming; Xu, Hong-He; Xue, Jin-Zhuang; Wang, Qi; Liu, Le (June 2015). "Leaf evolution in early-diverging ferns: insights from a new fern-like plant from the Late Devonian of China". Annals of Botany. 115 (7): 1133–1148. doi:10.1093/aob/mcv049. PMC 4648459. PMID 25979918.


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