Look up · dinosaur 1167 of 1,425
long-neck giant
Sonorasaurus
Say it like this: “so-NOR-a-SAWR-us”
Sonorasaurus thompsoni
Sonorasaurus ate plants and walked on four legs. It lived in the Early Cretaceous · Late Cretaceous. Bones have been found in the United States.
- When
- Early Cretaceous · Late Cretaceous (Albian · Cenomanian) · roughly 113.2 to 93.9 million years ago
- Named in
- 1998 · Ratkevich, R.
- Hip height
- 3.5 m · 11 ft
- Length
- 15 m · 49 ft
- Weight
- 17 tonnes
- Found in
- the United States · Turney Ranch
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Brachiosauridae
The story in short
In 1998, R. Ratkevich published the name Sonorasaurus. The name means “sonora lizard.”
It lived in the Early Cretaceous · Late Cretaceous (Albian · Cenomanian), roughly 113.2 to 93.9 million years ago. Finds come from the United States, including the Turney Ranch Formation. It was a herbivore and walked on four legs.
Published estimates put Sonorasaurus at a length near 15 m, hips about 3.5 m high, and a body mass around 17 tonnes.
On the family tree it sits in Brachiosauridae, among the sauropod dinosaurs.
Close relatives
Abydosaurus
Abydosaurus mcintoshi
Early Cretaceous (Albian) · roughly 113.2 to 100.5 million years ago
Brachiosaurus
Brachiosaurus altithorax
Late Jurassic (Kimmeridgian · Tithonian) · roughly 154.8 to 143.1 million years ago
Cedarosaurus
Cedarosaurus weiskopfae
Early Cretaceous (Valanginian) · roughly 137.1 to 132.6 million years ago