Biology:Caytonia nathorstii
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Short description: Extinct species of seed fern
| Caytonia nathorstii | |
|---|---|
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| Caytonia nathorstii ovulate structure, Middle Jurassic, Gristhorpe Bed, Cloughton Formation, Cayton Bay, Yorkshire. | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | †Pteridospermatophyta |
| Order: | †Caytoniales |
| Family: | †Caytoniaceae |
| Genus: | †Caytonia |
| Species: | †C. nathorstii
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| Binomial name | |
| †Caytonia nathorstii | |
Caytonia nathorstii is an extinct species of seed ferns.[1]
Description
Caytonia has berry like cupules with numerous small seeds arrayed along axes
Whole plant reconstructions
Different organs attributed to the same original plant can be reconstructed from co-occurrence at the same locality and from similarities in the stomatal apparatus and other anatomical peculiarities of fossilized cuticles.
- Caytonia nathorstii may have been produced by the same plant as Caytonanthus arberi (pollen organs) and Sagenopteris phillipsii (leaves).
References
- ↑ Retallack, Greg J; Dilcher, David L (1988). "Reconstructions of Selected Seed Ferns". Annals of the Missouri Botanical Garden (Missouri Botanical Garden Press) 75 (3): 1045. doi:10.2307/2399379. https://cpb-us-e1.wpmucdn.com/blogs.uoregon.edu/dist/d/3735/files/2013/07/missouribotanicalgardenannals1988seedfern-1vn853p.pdf.
Wikidata ☰ Q25095326 entry
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