View original imageThis is an original generative reconstruction, not a photograph or scientific plate.
132 / Mesozoic
Caytonia
Caytonia nathorstii
Curved cupules containing ovules hung beneath compound leaves in this puzzling seed plant.
Structured expansion · editorial review pending
- Time range
- About 170 million years ago
- Final stage
- Middle Jurassic
- Geographic range
- Western European estuarine woodland · Present-day Britain
01 / ANSWER FIRST
What was Caytonia?
This archive records Caytonia under the scientific name Caytonia nathorstii, with an age of About 170 million years ago and a range of Western European estuarine woodland · Present-day Britain. Curved cupules containing ovules hung beneath compound leaves in this puzzling seed plant.
Caytonia was a woody seed plant with palmately compound leaves. Its cupules had openings but were not fully closed ovaries, so it was not simply an early flowering plant.
02 / QUICK FACTS
Caytonia at a glance
- Scientific name
- Caytonia nathorstii
- Age
- About 170 million years ago
- Last recorded stage
- Middle Jurassic
- Known range
- Western European estuarine woodland · Present-day Britain
- Broad group
- plant
- Archive era
- Mesozoic
- Habitat signals
- Forest
- Documented regions
- Europe
03 / ANATOMY
How was Caytonia built?
Overall body plan
Curved cupules containing ovules hung beneath compound leaves in this puzzling seed plant.
Growth architecture
The available record is interpreted through preserved proportions, attachment surfaces, wear and comparison with related organisms. For Caytonia, those observations must be separated from features added only for visual reconstruction.
Reproductive structures
Caytonia was a woody seed plant with palmately compound leaves. Its cupules had openings but were not fully closed ovaries, so it was not simply an early flowering plant.
Growth and individual variation
A single specimen does not define the whole species. Size, maturity, preservation and possible sex differences are considered before anatomical traits are treated as typical of Caytonia.
04 / DIET & BEHAVIOUR
How did Caytonia live?
Caytonia was a woody seed plant with palmately compound leaves. Its cupules had openings but were not fully closed ovaries, so it was not simply an early flowering plant. This ecological reconstruction is strongest where anatomy, associated organisms and the depositional setting point in the same direction.
05 / DIET & BEHAVIOUR
What shaped its ecological limits?
Its populations depended on plant communities, soils, water availability and climate. Changes in any one factor did not necessarily cause immediate extinction, but interacting pressures could reduce range, recruitment and resilience.
06 / RANGE & HABITAT
Where and when did Caytonia live?
This archive currently lists About 170 million years ago; Western European estuarine woodland · Present-day Britain. Fossil or historical occurrence data describe where evidence has been found, not every place the taxon once occupied. Species-level age and range limits still require source-specific review.
Documented geographic range
Western European estuarine woodland · Present-day Britain. This boundary can change when specimens are reidentified or new localities are published.
Time window
About 170 million years ago, with the final recorded stage listed as Middle Jurassic. Rock units and dating uncertainty mean the true biological range may extend beyond the known record.
Environmental setting
The archive uses the broad habitat labels Forest. These labels help explore related records; a habitat reconstruction requires evidence from individual localities.
07 / FOSSIL EVIDENCE
What evidence supports reconstructions of Caytonia?
Primary record
Cuticles from leaves, pollen organs and ovule-bearing cupules link the dispersed fossils.
Comparative anatomy
Preserved structures are compared with close and functionally similar organisms. The method can constrain posture and function, but analogy alone cannot prove colour, behaviour or soft tissue.
Age and locality
Stratigraphy and occurrence records place Caytonia within About 170 million years ago and Western European estuarine woodland · Present-day Britain. Reworked fossils and uncertain provenance are treated cautiously.
Open entity records
Links below connect the archive to available taxonomic and occurrence records. A matching name does not verify every ecological claim, and related-taxon links provide comparison rather than an exact species match.
08 / DISAPPEARANCE & DEBATE
Why did Caytonia disappear?
Seed-plant communities were reorganized from the Jurassic into the Cretaceous, and caytonialeans did not persist.
The last fossil or observation marks the youngest evidence currently known, not necessarily the death of the final individual. Explanations are strongest when timing, environmental change and population biology agree; otherwise the profile preserves uncertainty instead of assigning a single dramatic cause.
09 / FREQUENTLY ASKED QUESTIONS
Caytonia FAQ
What was Caytonia?
This archive records Caytonia under the scientific name Caytonia nathorstii, with an age of About 170 million years ago. Curved cupules containing ovules hung beneath compound leaves in this puzzling seed plant.
When did Caytonia live?
The current archive range is About 170 million years ago; its youngest recorded stage is Middle Jurassic.
Where was Caytonia found?
The archive currently lists Western European estuarine woodland · Present-day Britain. Species-level locality assignments and the full geographic range still require source-specific review.
How do scientists know about Caytonia?
Cuticles from leaves, pollen organs and ovule-bearing cupules link the dispersed fossils.
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?
- Completed an AI-assisted bilingual audit of the archive record, corrected identified issues and clarified evidence limits; independent editorial review is pending.
- Expanded into a structured bilingual profile with anatomy, ecology, range, evidence, debate and FAQs; independent editorial review is pending.
- Verified authoritative entity sources and added three responsive reconstruction sizes.
- Initial bilingual species record published.
06 / CORRECTIONS & ADDITIONS