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Sagenopteris phillipsii 
Summary
Sagenopteris phillipsii are leaves of extinct species of seed ferns.
| Sagenopteris phillipsii Temporal range: −
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|---|---|
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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
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| Binomial name | |
| †Sagenopteris phillipsii (Brongn.) Presl
| |
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