Hard

Amargasaurus

Amargasaurus cazaui

ah-MAR-gah-SORE-us· “La Amarga lizard”

🦕 Dinosaur🕰️ Cretaceous🌿 herbivore🦴 Dicraeosauridae

10 m

Length

2.7 m

Height

2.6 t

Weight

A small sauropod instantly recognisable for the tall, forked double row of spines running along its neck and back. These may have supported twin sails, a mane, or served for display and defence.

When

Early Cretaceous, ~129–122 million years ago

Found in

Argentina

Discovered

José Bonaparte, 1984

Did you know?

Its neck bore two parallel rows of tall spines unlike any other sauropod.
The spines may have carried sails or a keratin sheath for display or defence.
Tiny for a sauropod at only about 10 metres long.

Artwork: Fred Wierum, Wikimedia Commons, CC BY-SA 4.0.