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long-neck giant
Aragosaurus
Say it like this: “AHR-a-go-SAWR-us”
Aragosaurus ischiaticus
Aragosaurus ate plants and walked on four legs. It lived in the Late Jurassic · Early Cretaceous. Bones have been found in Spain.
- When
- Late Jurassic · Early Cretaceous (Tithonian · Berriasian) · roughly 149.2 to 137.1 million years ago
- Named in
- 1987 · Sanz, J. L.; Buscalioni, A. D.; Casanovas, M. L.; Santafé, J. V.
- Hip height
- Not established
- Length
- 18 m · 59 ft
- Weight
- 25 tonnes
- Found in
- Spain · Villar del Arzobispo
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Macronaria
The story in short
Aragosaurus was formally named in 1987 by J. L. Sanz and colleagues. The name means “aragon lizard.”
It lived in the Late Jurassic · Early Cretaceous (Tithonian · Berriasian), roughly 149.2 to 137.1 million years ago. Finds come from Spain, including the Villar del Arzobispo Formation. It was a herbivore and walked on four legs.
Published estimates put Aragosaurus at a length near 18 m and a body mass around 25 tonnes.
On the family tree it sits in Macronaria, among the sauropod dinosaurs.
Close relatives
Abrosaurus
Abrosaurus dongpoi
Middle Jurassic · Late Jurassic (Bajocian–Oxfordian) · roughly 170.9 to 154.8 million years ago
Astrodon
Astrodon johnstoni
Early Cretaceous (Aptian · Albian) · roughly 121.4 to 100.5 million years ago
Bicharracosaurus
Bicharracosaurus dionidei
Late Jurassic (Oxfordian · Kimmeridgian) · roughly 161.5 to 149.2 million years ago