Achelousaurus with Bumps on Its Head
A ceratopsian dinosaur with rounded head bosses and a spiked neck frill stands at an angle.
A4 format (portrait), black outlines on a white background · for home and classroom use
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The Anatomy of Achelousaurus
Achelousaurus features a distinctive central snout boss instead of a long nose horn, paired with prominent knobs over the eyes. Its protective neck frill extends backward, ending in a set of long curved spikes.
Intriguing Facts About Head Crests and Bosses
The thick bone boss on the snout of Achelousaurus likely developed as the dinosaur matured into adulthood. Paleontologists believe these heavy head structures were used in display contests among herd members. The long neck spikes provided additional protection against larger predators in its North American habitat.
Natural Colors of Achelousaurus
- Body hide: shades of earthy brown, gray, and deep olive green
- Snout boss and eye knobs: weathered bone gray, muted tan, or dark charcoal
- Frill spikes: off-white, light gray, or pale yellow
- Protective neck frill: muted forest green or warm sandy brown