| First Appearance
Oobi-Rex is a minor character in Oobi.
Oobi-Rex is a fictional dinosaur featured in a book written by Oobi. In the story, he helps the lost Umasaurus find her way back to the house of Grampusaurus.
Oobi-Rex is mostly brown, with many yellow stripes and spots across his back. His eyes are hazel. He has a crest on top of his head, similar to that of Corythosaurus.
Oobi-Rex has appeared in one episode of Oobi: "Dinosaur!"
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