Explore this animal in Size of Extinct Animals ↗
276 / Mesozoic
Corythosaurus
Corythosaurus casuarius
A helmet-shaped hollow crest contained looping nasal passages that could shape resonant calls.
View original image · 1536 × 1024- Time range
- About 77–75 million years ago
- Final stage
- Late Cretaceous
- Geographic range
- Coastal plains · Alberta, Canada
01 / DEFINITION & ECOLOGY
What was Corythosaurus?
Corythosaurus (Corythosaurus casuarius) was an extinct organism known from About 77–75 million years ago, with a range in Coastal plains · Alberta, Canada.
Life and ecology
Corythosaurus moved in herds through coastal forests, using dental batteries to process vegetation and crests for display and sound.
02 / DISAPPEARANCE
Why did Corythosaurus disappear?
Regional environmental and hadrosaur turnover is possible context, but it does not establish why the genus disappeared.
03 / EVIDENCE
How do scientists know about Corythosaurus?
Abundant skulls, growth stages and skin impressions reveal crest development and body covering.
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