421 / Mesozoic
Dicroidium
Dicroidium odontopteroides
Paired forked fronds became an emblem of Triassic southern vegetation.
View original image · 1600 × 1067- Time range
- About 247–201 million years ago
- Final stage
- End of the Triassic
- Geographic range
- Temperate Gondwanan woodland · Southern Hemisphere
01 / DEFINITION & ECOLOGY
What was Dicroidium?
Dicroidium (Dicroidium odontopteroides) was an extinct organism known from About 247–201 million years ago, with a range in Temperate Gondwanan woodland · Southern Hemisphere.
Life and ecology
This seed fern grew as a shrub or tree in strongly seasonal temperate woodland.
02 / DISAPPEARANCE
Why did Dicroidium disappear?
Dicroidium-dominated communities largely disappeared around the end-Triassic volcanic and climatic crisis; the precise role of that crisis in its loss is not established.
03 / EVIDENCE
How do scientists know about Dicroidium?
Associated foliage, wood, pollen and reproductive organs support the reconstruction.
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?
- Rewrote an extinction cause that presented environmental or faunal turnover as established; it is now given as context the record does not prove.
- Verified authoritative entity sources and added three responsive reconstruction sizes.
- Initial bilingual species record published.
06 / CORRECTIONS & ADDITIONS