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long-neck giant
Barosaurus
Say it like this: “BARR-oh-SOR-uhs”
Barosaurus lentus
Barosaurus ate plants and walked on four legs. It lived in the Late Jurassic. Bones have been found in the United States.
- When
- Late Jurassic (Kimmeridgian · Tithonian) · roughly 154.8 to 143.1 million years ago
- Named in
- 1890 · Marsh, O. C.
- Hip height
- 3.9 m · 13 ft
- Length
- 25–27 m · 82–89 ft
- Weight
- 12–20 tonnes
- Found in
- the United States · Morrison
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Diplodocinae
The story in short
The genus Barosaurus dates to 1890, the year O. C. Marsh described it.
It lived in the Late Jurassic (Kimmeridgian · Tithonian), roughly 154.8 to 143.1 million years ago. Finds come from the United States, including the Morrison Formation. It was a herbivore and walked on four legs.
Published estimates put Barosaurus at a length near 25–27 m, hips about 3.9 m high, and a body mass around 12–20 tonnes.
On the family tree it sits in Diplodocinae, among the sauropod dinosaurs.
Close relatives
Ardetosaurus
Ardetosaurus viator
Late Jurassic (Kimmeridgian) · roughly 154.8 to 149.2 million years ago
Dinheirosaurus
Dinheirosaurus lourinhanensis
Late Jurassic (Kimmeridgian · Tithonian) · roughly 154.8 to 143.1 million years ago
Diplodocus
Diplodocus longus
Late Jurassic (Kimmeridgian · Tithonian) · roughly 154.8 to 143.1 million years ago