Caytonia
| Caytonia | |
|---|---|
 | |
| Caytonia nathorstii ovulate structure, Middle Jurassic, Gristhorpe Bed, Cloughton Formation, Cayton Bay, Yorkshire. | |
Scientific classification  | |
| 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).
gollark: It isn't like your touchscreen has infinite precision.
gollark: If I really wanted to I'm sure I could convert it to vector graphics.
gollark: I have a lot of pens, so it's fine.
gollark: Then I scan it using my phone.
gollark: No, paper.
References
- Retallack, G.J.; Dilcher, D.L. (1988). "Reconstructions of selected seed ferns". Missouri Botanical Garden Annals. 75: 1010–1057.
- 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. doi:10.1080/14772019.2018.1535456.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.