What was the most striking anatomical feature of Amargasaurus?

Answer

Tall, closely spaced neural spines projecting over its neck

Amargasaurus is famous for the array of tall, closely spaced neural spines running along its neck and back, which could reach nearly a meter in height.

What was the most striking anatomical feature of Amargasaurus?
speciespaleontologydinosaurAmargasauruscoexistence