[ Without hesitation or his grim voice cracking in the slightest- ]

I'm an Archaeopteryx, a bird-like dinosaur that is transitional between non-avian feathered dinosaurs and modern birds that was active in the Jurassic period.

[ Rex says it off handily as he delicately puts his huge piece of rubble down, and first looks over the team, then the adamant hostages and finally the hounds with a scanning spell. He’s still a medic, yah know. ]