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sharp-clawed runner
Guanlong
Say it like this: “gwan-long”
Guanlong wucaii
Guanlong ate meat and walked on two legs. It lived in the Middle Jurassic · Late Jurassic. Bones have been found in China.
- When
- Middle Jurassic · Late Jurassic (Callovian · Oxfordian) · roughly 165.3 to 154.8 million years ago
- Named in
- 2006 · Xu, X.; Clark, J. M.; Forster, C. A.; Norell, M. A.; Erickson, G. M.; Eberth, D. A.; Jia, C.; Zhao, Q.
- Hip height
- Not established
- Length
- 3–3.5 m · 10–11 ft
- Weight
- 125 kg · 276 lb
- Found in
- China · Shishugou
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Proceratosauridae
The story in short
In 2006, X. Xu and colleagues published the name Guanlong. The name means “crown dragon.”
It lived in the Middle Jurassic · Late Jurassic (Callovian · Oxfordian), roughly 165.3 to 154.8 million years ago. Finds come from China, including the Shishugou Formation. It was a carnivore and walked on two legs.
Published estimates put Guanlong at a length near 3–3.5 m and a body mass around 125 kg.
On the family tree it sits in Proceratosauridae, among the theropod dinosaurs.
Close relatives
Kileskus
Kileskus aristotocus
Middle Jurassic (Bathonian) · roughly 168.2 to 165.3 million years ago
Proceratosaurus
Proceratosaurus bradleyi
Middle Jurassic (Bathonian) · roughly 168.2 to 165.3 million years ago
Sinotyrannus
Sinotyrannus kazuoensis
Early Cretaceous (Aptian) · roughly 121.4 to 113.2 million years ago