Yes, SAUROPOD is a Scrabble word!

Letter values in Scrabble US: S 1, A 1, U 1, R 1, O 1, P 3, O 1, D 2.

Is it a valid word?

SAUROPOD is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

very large herbivorous dinosaur of the Jurassic and Cretaceous having a small head a long neck and tail and five-toed limbs; largest known land animal

Also: sauropod dinosaur.