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349 / Mesozoic
Sagenopteris
Sagenopteris rhoifolia
Four net-veined leaflets belonged to a seed fern rather than a true fern.
- Time range
- About 201–174 million years ago
- Final stage
- Middle Jurassic
- Geographic range
- River wetlands and deltas · Northern Hemisphere
01 / DEFINITION & ECOLOGY
What was Sagenopteris?
Sagenopteris (Sagenopteris rhoifolia) was an extinct organism known from About 201–174 million years ago, with a range in River wetlands and deltas · Northern Hemisphere.
Life and ecology
This caytonialean plant grew in wet lowlands and enclosed seeds within cup-like organs.
02 / DISAPPEARANCE
Why did Sagenopteris disappear?
Jurassic plant turnover preceded the later disappearance of Caytoniales.
03 / EVIDENCE
How do scientists know about Sagenopteris?
Cuticles and associated pollen and seed organs reconstruct the whole plant.
04 / SOURCES & FURTHER READING
Check the source record
Use the scientific name to compare taxonomy, occurrence records and the fossil record. Database coverage and classifications may differ.
05 / REVISION HISTORY
How has this record changed?
- Verified authoritative entity sources and added three responsive reconstruction sizes.
- Initial bilingual species record published.
06 / CORRECTIONS & ADDITIONS