Octosaur



An Octosaur was a large animal native to Krypton.

They seemed to be biologically similar to octopi and dinosaurs.

Earth-1A
When Superman went to stop the Scarecrow from terrorizing the local population, he was apparently exposed to Scarecrow's Fear Toxin, which caused his fear of octosaurs to come to life. It then solidified, and started battling him.

It wasn't until Superman finally realized that it was his fear that was making the creature become a real-life threat that his fear started to subside, causing the octosaur to disappear.

Appearance
Super Friends books
 * Balance of Power! (1974)