Getting super-powered animals to fight one another is one of the Superman books' mandate through the Silver Age, and it doesn't take much. Krypto is super-petty in this story after a bone he buried is found pulverized under Titano's footprint. It's not like Titano is at large. He's been thrown through the time barrier into the dinosaur age, we're told. That's not gonna stop Krypto from getting his revenge.
Meanwhile, when Kyrpto was a pup... He was much more heroic without powers! In a story taking us back to Krypton to reveal how a jerky teenage Dev-Em also survived the planet's destruction, he saves toddler Kal-El from Dev-Em's bad driving: