Superman wasn't the sole survivor of his world, as we've previously considered. Among the earliest fellow Kryptonians whom he encountered were actual winged dragon-like beasts, specifically the Flame Dragon who attacked Earth-One and the Snagriff who preyed upon Earth-Two. While these counterpart creatures were slightly different in appearance, they essentially were similar in their ferocious bestial nature and flame breathing prowess.
The Flame Dragon had escaped Krypton-One's orbit before its destruction, leaving its brethren behind to face that world's doom, and battled Superman until the man of steel deprived the beast of its superpowers and froze it in space. The Snagriff was destroyed after consuming several atomic bombs. While the latter was the last of its kind, the former spawned and offspring eventually sent to a past era on Krypton. Additionally, the Snagriff had a metallic substance created by Jor-L that bonded with the creature upon the destruction of Krypton-Two's moon Koron (its counterpart, the moon Wegthor was destroyed by the criminal Jax-Ur), similar to the metallic protoplasmic entity exiled from Krypton-One by Jor-El that later bonded to General D.W. Derwent and a Superman robot.