Sagenopteris phillipsii
Sagenopteris phillipsii are leaves of extinct species of seed ferns.
A complete reconstruction of Caytonia nathorstii plant Retallack and Dilcher 1988
| Sagenopteris phillipsii | |
|---|---|
 | |
| Sagenopteris phillipsii leaves, Middle Jurassic, Gristhorpe Bed, Cloughton Formation, Cayton Bay, Yorkshire. | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | †Pteridospermatophyta |
| Order: | †Caytoniales |
| Family: | †Caytoniaceae |
| Genus: | †Sagenopteris |
| Species: | †S. phillipsii |
| Binomial name | |
| †Sagenopteris phillipsii (Brongn.) Presl | |
Description
Sagenopteris phillipsii has narrow, 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).
gollark: `gife` actually.
gollark: It claims to make hexagons.
gollark: h n=mapM_(putStrLn.(\k->([k..n]>>" ")++([2..n+k]>>"* ")))([1..n-1]++[n,n-1..1])
gollark: Look at code golf!
gollark: This is kind of sacriligeous, but not everything has to be crazily pointfree.
References
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.