Sagenopteris
| Sagenopteris Temporal range: Jurassic − | |
|---|---|
 | |
| Sagenopteris phillipsii leaves, Middle Jurassic, Gristhorpe Bed, Cloughton Formation, Cayton Bay, Yorkshire. | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pteridospermatophyta |
| Order: | Peltaspermales |
| Family: | Caytoniaceae |
| Genus: | Sagenopteris Presl 1838 |
| Species | |
| |
Sagenopteris are leaves of extinct genus of seed ferns.
Description
Sagenopteris" has palmately arranged leaves with anastomosing venation
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.
- Sagenopteris phillipsii may have been produced by the same plant as Caytonia nathorstii (ovulate organs) and Caytonanthus arberi (pollen organs).[1]
References
- ↑ Retallack, G.J. & Dilcher, D.L. (1988). "Reconstructions of selected seed ferns". Missouri Botanical Garden Annals. 75: 1010–1057.
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