Caytonia
| Caytonia Temporal range: Jurassic − | |
|---|---|
 | |
| Caytonia nathorstii ovulate structure, Middle Jurassic, Gristhorpe Bed, Cloughton Formation, Cayton Bay, Yorkshire. | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pteridospermatophyta |
| Order: | Caytoniales |
| Family: | Caytoniaceae |
| Genus: | Caytonia 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
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: 1010–1057.
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