Amargasaurus

Dicraeosaurid sauropod dinosaur genus from the Early Cretaceous period

Amargasaurus ("La Amarga lizard") is a genus of sauropod dinosaur from the Early Cretaceous epoch (130–120 mya) of what is now Argentina. The only known skeleton was discovered in 1984 and is virtually complete, including a fragmentary skull, making Amargasaurus one of the best-known sauropods of its epoch. Amargasaurus was first described in 1991 and contains a single known species, Amargasaurus cazaui.

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