Sagenopteris phillipsii
Sagenopteris phillipsii Temporal range: − | |
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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 |
Sagenopteris phillipsii are leaves of extinct species of seed ferns.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Caytonia_reconstruction_Retallack_and_Dilcher_1988.jpg/200px-Caytonia_reconstruction_Retallack_and_Dilcher_1988.jpg)
Description[edit]
Sagenopteris phillipsii has narrow, palmately arranged leaves with anastomosing venation
Whole plant reconstructions[edit]
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).
References[edit]