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sharp-clawed runner
Aviatyrannis
Say it like this: “AY-vi-uh-TIE-ran-iss”
Aviatyrannis jurassica
Aviatyrannis ate meat and walked on two legs. It lived in the Late Jurassic. Bones have been found in Portugal.
- When
- Late Jurassic (Oxfordian · Kimmeridgian · Tithonian) · roughly 161.5 to 143.1 million years ago
- Named in
- 2003 · Rauhut, O. W. M.
- Hip height
- 0.2 m · 1 ft
- Length
- 1 m · 3 ft
- Weight
- 4 kg · 9 lb
- Found in
- Portugal · Alcobaça
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Tyrannosauroidea
The story in short
Aviatyrannis was formally named in 2003 by O. W. M. Rauhut. The name means “the tyrant.”
It lived in the Late Jurassic (Oxfordian · Kimmeridgian · Tithonian), roughly 161.5 to 143.1 million years ago. Finds come from Portugal, including the Alcobaça Formation. It was a carnivore and walked on two legs.
Published estimates put Aviatyrannis at a length near 1 m, hips about 0.2 m high, and a body mass around 4 kg.
On the family tree it sits in Tyrannosauroidea, among the theropod dinosaurs.
Close relatives
Alectrosaurus
Alectrosaurus olseni
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Calamosaurus
Calamosaurus foxi
Early Cretaceous (Barremian) · roughly 125.8 to 121.4 million years ago
Chingkankousaurus
Chingkankousaurus fragilis
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago