Biology:Caytonia
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Short description: Extinct genus of seed ferns
| Caytonia | |
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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 H.H.Thomas, 1925 |
| Species | |
Caytonia is an extinct genus of seed ferns.
A complete reconstruction of Caytonia nathorstii plant Retallack and Dilcher 1988[1]
Description
Caytonia has berry-like cupules with numerous small seeds arrayed along axes [2]
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, G.J.; Dilcher, D.L. (1988). "Reconstructions of selected seed ferns". Missouri Botanical Garden Annals 75 (3): 1010–1057. doi:10.2307/2399379.
- ↑ Elgorriaga, A.; Escapa, I. H.; Cúneo, R. (2019). "Southern Hemisphere Caytoniales: vegetative and reproductive remains from the Lonco Trapial Formation (Lower Jurassic), Patagonia.". Journal of Systematic Palaeontology 17 (17): 1477–1495. doi:10.1080/14772019.2018.1535456.
Wikidata ☰ Q28208752 entry
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