Explore this animal in Size of Extinct Animals ↗
537 / Mesozoic
Tarchia
Tarchia kielanae
Heavy skull armor, neck rings and a tail club belonged to a large Gobi ankylosaur.
View original image · 1600 × 1067- Time range
- About 75–70 million years ago
- Final stage
- Late Cretaceous
- Geographic range
- Dry valleys and scrub · Mongolia
01 / DEFINITION & ECOLOGY
What was Tarchia?
Tarchia (Tarchia kielanae) was an extinct organism known from About 75–70 million years ago, with a range in Dry valleys and scrub · Mongolia.
Life and ecology
It cropped low vegetation and defended itself with the tail club.
02 / DISAPPEARANCE
Why did Tarchia disappear?
Its record, about 75–70 million years old, does not establish survival to the end-Cretaceous impact; the specific cause of its disappearance is unknown.
03 / EVIDENCE
How do scientists know about Tarchia?
Skulls and associated skeletons preserve armor and tail structure; color and behavior remain inferred.
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?
- Removed an extinction cause that credited a mass extinction occurring after this species' last dated record.
- Verified authoritative entity sources and added three responsive reconstruction sizes.
- Initial bilingual species record published.
06 / CORRECTIONS & ADDITIONS