Utahraptor

The Utahraptor was a large dinosaur that chased Sonic and Tails in prehistoric times.

History
The Utahraptor's appearance scared off Mum away from her nest. Sonic and Tails first thought he was he was a robot created by Robotnik, but then assumed he was a tyrannosaurus before they clearly saw the fierce Utahraptor. "They were about the same size as a tyrannosaurus but faster, more vicious, and hungrier. Look at that huge claw on its hind foot, that's a Utahraptor alright.", as Tails described the creature. The creature was soon coming towards them, "its heavy breath hot and foul on the back of their necks." Sonic and Tails then climbed up the tree to avoid it.

The creature then lumbered towards the lake. Tails gave a long, piercing whistle to it and it headed towards them. The Utahraptor was successfully distracted towards Robotnik's robots by Sonic and Tails as they ran.