Dinosaurs · Small ornithopod
Zephyrosaurus
Say it ZEF-ear-ro-SORE-us. The name means ‘west wind lizard’.
- Length
- 1.8 m
- Diet
- Plant-eater
- When
- Early Cretaceous120 to 110 million years ago
- Fossils found in
- USA
- Named by
- Sues (1980)
- Family tree
- Dinosauria › Ornithischia › Ornithopoda › Euornithopoda
Small ornithopods. Small, fast, two-legged plant-eaters. See all 12
Lived at the same time
- Sauropelta · same country
- Tenontosaurus · same country
- Silvisaurus · same country
- Acrocanthosaurus · same country
- Deinonychus · same country
- Nodosaurus · same country
- Archaeoceratops
- Atlascopcosaurus
Other small ornithopods
- Atlascopcosaurus Early Cretaceous
- Leaellynasaura Early Cretaceous
- Oryctodromeus Late Cretaceous
- Valdosaurus Early Cretaceous
- Gasparinisaura Late Cretaceous
- Dryosaurus Late Jurassic
- Parksosaurus Late Cretaceous
- Thescelosaurus Late Cretaceous
Source: Zephyrosaurus in the Natural History Museum Dino Directory, read 12 November 2026. Sizes are the museum's estimates for a typical adult. "Lived at the same time" lists dinosaurs whose dates overlap, which does not always mean they met.