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long-neck giant
Dyslocosaurus
Say it like this: “dis-LOK-o-SAWR-us”
Dyslocosaurus polyonychius
Dyslocosaurus 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
- 1992 · McIntosh, J. S.; Coombs, W. P.; Russell, D. A.
- Hip height
- Not established
- Length
- 18 m · 59 ft
- Weight
- 5 tonnes
- Found in
- the United States · Morrison
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Dicraeosauridae
The story in short
Dyslocosaurus was formally named in 1992 by J. S. McIntosh and colleagues. The name means “hard-to-place lizard.”
Fossils referred to Dyslocosaurus date to 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 Dyslocosaurus at a length near 18 m and a body mass around 5 tonnes.
On the family tree it sits in Dicraeosauridae, among the sauropod dinosaurs.