Sagenopteris
| Sagenopteris Temporal range: Middle Triassic-Late Cretaceous
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| Illustration showing change in leaf shape of Sagenopteris acuminata during growth, and mature leaves attached to woody stem | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | †Pteridospermatophyta |
| Order: | †Caytoniales |
| Family: | †Caytoniaceae |
| Genus: | †Sagenopteris Presl 1838 |
| Species | |
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See text | |
Sagenopteris is a form genus of leaves belonging to the extinct seed plant order Caytoniales, spanning from the Middle Triassic to Late Cretaceous.