The best-known ankylosaur scientifically — dozens of skeletons found, always alone, suggesting a solitary grump of an animal. Complex looping nasal passages hint it had an excellent sense of smell, or a resonant voice.
Length5.5 m
Height1.4 m
Weight2,500 kg
Top speed12 km/h
Field notes
- Over 40 specimens have been found — nearly all of them solitary.
- Its convoluted nasal passages may have warmed and humidified air.