Explore this animal in Size of Extinct Animals ↗
277 / Mesozoic
Lambeosaurus
Lambeosaurus lambei
Its hatchet-shaped hollow crest changed dramatically as the animal matured.
View original image · 1536 × 1024- Time range
- About 76–75 million years ago
- Final stage
- Late Cretaceous
- Geographic range
- Rivers and coastal forests · Alberta, Canada
01 / DEFINITION & ECOLOGY
What was Lambeosaurus?
Lambeosaurus (Lambeosaurus lambei) was an extinct organism known from About 76–75 million years ago, with a range in Rivers and coastal forests · Alberta, Canada.
Life and ecology
Lambeosaurus was a herd-forming hadrosaur whose nasal passages ran through the crest, likely combining visual and acoustic signals.
02 / DISAPPEARANCE
Why did Lambeosaurus disappear?
Late Cretaceous habitat and dinosaur turnover is possible context; a younger fauna does not by itself show that other hadrosaurs replaced it.
03 / EVIDENCE
How do scientists know about Lambeosaurus?
Skulls from juveniles to adults document crest growth, while skeletons and skin preserve posture and scales.
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