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early long-neck
Asylosaurus
Say it like this: “ah-SIGH-lo-SOR-US”
Asylosaurus yalensis
Asylosaurus ate plants and walked on two legs. It lived in the Late Triassic. Bones have been found in the United Kingdom.
- When
- Late Triassic (Rhaetian) · roughly 205.7 to 201.4 million years ago
- Named in
- 2007 · Galton, P. M.
- Hip height
- 0.5 m · 2 ft
- Length
- 2 m · 7 ft
- Weight
- 250 kg · 551 lb
- Found in
- the United Kingdom
- Food and walking
- Herbivore · Two legs
- Kind
- early long-neck · Sauropodomorph
- Family branch
- Sauropodomorpha
The story in short
The genus Asylosaurus dates to 2007, the year P. M. Galton described it. The name means “unharmed lizard.”
It lived in the Late Triassic (Rhaetian), roughly 205.7 to 201.4 million years ago. Finds come from the United Kingdom. It was a herbivore and walked on two legs.
Published estimates put Asylosaurus at a length near 2 m, hips about 0.5 m high, and a body mass around 250 kg.
On the family tree it sits in Sauropodomorpha, among the early long-necked dinosaurs.
Close relatives
Agrosaurus
Agrosaurus macgillivrayi
Late Triassic (Rhaetian) · roughly 205.7 to 201.4 million years ago
Ahvaytum
Ahvaytum bahndooiveche
Late Triassic (Carnian) · roughly 237 to 227.3 million years ago
Arcusaurus
Arcusaurus pereirabdalorum
Early Jurassic (Hettangian · Sinemurian) · roughly 201.4 to 192.9 million years ago