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early long-neck
Leonerasaurus
Say it like this: “lee-o-neh-ra-sor-us”
Leonerasaurus taquetrensis
Leonerasaurus ate plants and walked on two or four legs. It lived in the Early Jurassic. Bones have been found in Argentina.
- When
- Early Jurassic (Pliensbachian) · roughly 192.9 to 184.2 million years ago
- Named in
- 2011 · Pol, D.; Garrido, A.; Cerda, I. A.
- Hip height
- 0.7 m · 2 ft
- Length
- 2.4 m · 8 ft
- Weight
- 70 kg · 154 lb
- Found in
- Argentina · Las Leoneras
- Food and walking
- Herbivore · Two or four legs
- Kind
- early long-neck · Sauropodomorph
- Family branch
- Sauropodiformes
The story in short
Leonerasaurus was formally named in 2011 by D. Pol and colleagues. The name means “las Leoneras lizard.”
It lived in the Early Jurassic (Pliensbachian), roughly 192.9 to 184.2 million years ago. Finds come from Argentina, including the Las Leoneras Formation. It was a herbivore and could move on two or four legs.
Published estimates put Leonerasaurus at a length near 2.4 m, hips about 0.7 m high, and a body mass around 70 kg.
On the family tree it sits in Sauropodiformes, among the early long-necked dinosaurs.
Close relatives
Aardonyx
Aardonyx celestae
Early Jurassic (Hettangian · Sinemurian) · roughly 201.4 to 192.9 million years ago
Anchisaurus
Anchisaurus polyzelus
Early Jurassic (Hettangian · Sinemurian) · roughly 201.4 to 192.9 million years ago
Blikanasaurus
Blikanasaurus cromptoni
Late Triassic (Norian · Rhaetian) · roughly 227.3 to 201.4 million years ago