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Brachiosaurus Bakugan (Unofficial name) is a dinosaur-like Bakugan from Bakugan: Mechtanium Surge.
Brachiosaurus Bakugan resemble a dinosaur from prehistoric times called Sauropods, mainly the Brachiosaurus Bakuganus. Like the Brachiosaurus Bakuganus, Brachiosaurus Bakugan has a long neck and eats plants. Each Brachiosaurus Bakugan has a horn on its head.
A group of Brachiosaurus Bakugan were seen eating plants and relaxing near a lake in Return to New Vestroia.
Brachiosaurus Bakugan, Triceratops Bakugan, and Raptor Bakugan were seen in a flashback waving goodbye to Jaakor in the Japanese version of The Prodigal Bakugan.