Look up · dinosaur 123 of 1,425
long-neck giant
Argyrosaurus
Say it like this: “AR-jy-roh-SOR-uhs”
Argyrosaurus superbus
Argyrosaurus ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Argentina.
- When
- Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
- Named in
- 1893 · Lydekker, R.
- Hip height
- 3.7 m · 12 ft
- Length
- 17–28 m · 56–92 ft
- Weight
- 12–50.8 tonnes
- Found in
- Argentina · Lago Colhué Huapi
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Titanosauria
The story in short
The genus Argyrosaurus dates to 1893, the year R. Lydekker described it. The name means “silver lizard.”
It lived in the Late Cretaceous (Campanian · Maastrichtian), roughly 83.6 to 66 million years ago. Finds come from Argentina, including the Lago Colhué Huapi Formation. It was a herbivore and walked on four legs.
Published estimates put Argyrosaurus at a length near 17–28 m, hips about 3.7 m high, and a body mass around 12–50.8 tonnes.
On the family tree it sits in Titanosauria, among the sauropod dinosaurs.
Close relatives
Aegyptosaurus
Aegyptosaurus baharijensis
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
Andesaurus
Andesaurus delgadoi
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
Antarctosaurus
Antarctosaurus wichmannianus
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago