Stranger

"Stranger" was an enemy of Godzilla featured in issue sixteen of Dark Horse Comic's "Godzilla King of the Monsters" series.

After sleeping for some time below the Earth's crust Godzilla dug himself to the surface to find himself enigmatically in the time of Dinosaurs. After attacking a nearby Triceratops, the Stranger noticed Godzilla. Realizing that Godzilla was the challenge it was looking for Stranger attacked the Kaiju. While the two monsters grappled with one another they failed to notice a large asteroid streaking towards them.

Eventually the asteroid struck the ground, the Stranger attempted to flee the destruction wrought by the asteroids impact, having it's tail torn off by Godzilla in the process. As Stranger fled Godzilla burrowed beneath the Earth where he collapsed due to exhaustion.

When Godzilla awoke he once again found himself in his proper time period. At first it seemed the entire battle with Stranger was simply a dream, until Godzilla looked downward and saw he was clutching the severed tail of the Stranger.

It is possible the Stranger was of alien origin, or at least was an undiscovered species of dinosaur.