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sharp-clawed runner
Cryolophosaurus
Say it like this: “KRY-uh-LOH-fuh-SAWR-uhs”
Cryolophosaurus ellioti
Cryolophosaurus ate meat and walked on two legs. It lived in the Early Jurassic. Bones have been found in Antarctica.
- When
- Early Jurassic (Sinemurian · Pliensbachian) · roughly 199.5 to 184.2 million years ago
- Named in
- 1994 · Hammer, W. R.; Hickerson, W. J.
- Hip height
- Not established
- Length
- 6–7.7 m · 20–25 ft
- Weight
- 350–780 kg · 772–1,720 lb
- Found in
- Antarctica · Hanson
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Neotheropoda
The story in short
The genus Cryolophosaurus dates to 1994, the year W. R. Hammer and W. J. Hickerson described it. The name means “frozen-crested lizard.”
Fossils referred to Cryolophosaurus date to the Early Jurassic (Sinemurian · Pliensbachian), roughly 199.5 to 184.2 million years ago. Finds come from Antarctica, including the Hanson Formation. It was a carnivore and walked on two legs.
Published estimates put Cryolophosaurus at a length near 6–7.7 m and a body mass around 350–780 kg.
On the family tree it sits in Neotheropoda, among the theropod dinosaurs.
Close relatives
Dilophosaurus
Dilophosaurus wetherilli
Early Jurassic (Hettangian · Sinemurian · Pliensbachian) · roughly 201.4 to 184.2 million years ago
Dolichosuchus
Dolichosuchus cristatus
Late Triassic (Norian) · roughly 227.3 to 205.7 million years ago
Dracovenator
Dracovenator regenti
Early Jurassic (Hettangian · Sinemurian) · roughly 201.4 to 192.9 million years ago