Spike

Type: Stegosaurus
Certified Cool
Still standing between you and it.

Spike did not survive the first extinction, and the arrival didn't let that stop him. What came through is bone, plates, and a tail built to settle arguments. Researchers can't agree on what "it" refers to. They do agree that Spike places himself between his habitat and whatever it is, every time. He has no flesh left to lose, and that has made him very difficult to move.

Spike has been recovered in two states. Skeleton is Spike as he was found, bone and nothing else. Ghost is harder to explain. The team recovered him from a reality where even the bones had started to fade, and he stayed standing anyway. It is the same Spike in both. Neither one has stepped aside.