Explore this animal in Size of Extinct Animals ↗
535 / Mesozoic
Eotyrannus
Eotyrannus lengi
Long three-fingered arms and a light body preceded the giant two-fingered tyrannosaurs.
View original image · 1600 × 1067- Time range
- About 130–125 million years ago
- Final stage
- Early Cretaceous
- Geographic range
- Humid floodplain · Britain
01 / DEFINITION & ECOLOGY
What was Eotyrannus?
Eotyrannus (Eotyrannus lengi) was an extinct organism known from About 130–125 million years ago, with a range in Humid floodplain · Britain.
Life and ecology
It ran after small dinosaurs and vertebrates and may have carried simple feathers.
02 / DISAPPEARANCE
Why did Eotyrannus disappear?
Mid-Cretaceous turnover among tyrannosauroids and other theropods is possible context, but it does not establish why the species disappeared.
03 / EVIDENCE
How do scientists know about Eotyrannus?
An Isle of Wight skeleton preserves skull, arms, pelvis and legs; covering follows relatives.
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