503 / Paleozoic
Walchia
Walchia piniformis
Needle-like leaves crowded the shoots of an early conifer-like tree.
View original image · 1600 × 1067- Time range
- About 299–273 million years ago
- Final stage
- Early Permian
- Geographic range
- Semi-arid uplands and floodplains · Euramerica
01 / DEFINITION & ECOLOGY
What was Walchia?
Walchia (Walchia piniformis) was an extinct organism known from About 299–273 million years ago, with a range in Semi-arid uplands and floodplains · Euramerica.
Life and ecology
Walchia formed open woodland on drier ground after the decline of coal swamps.
02 / DISAPPEARANCE
Why did Walchia disappear?
More derived voltzialeans and modern-type conifers spread later, but a younger flora does not by itself show that they replaced its architecture.
03 / EVIDENCE
How do scientists know about Walchia?
Shoots, wood and cones document its structure, although walchian taxonomy is still revised.
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