Character
The Tylosaurus is a mosasaur that appears in the episode "Lost and Found."
Description[]
It is a long, slender light blue reptilian with dark blue spots and lime fins, including a tail fluke. It also has a long snout with a mouth full of sharp teeth.
Role in episode[]
At the end of the episode, when SpongeBob gives back the little boy his teddy fish, he declines SpongeBob's offer and says he has a new thing to look forward to, which is a Tylosaurus, and then plays with it.
The Tylosaurus then appears inside the Lost and Found, which Squidward is still in, and the latter gets scared of the animal.