Another take on the winged Tyrannosaur...
This one's a photo of a watercolor.
Yeah, it's pretty bad.
Yeah, poor little fella. But it was the only way that Ms. Avalon could induce the Tyrannosaurus pennatus to come back (go forward?) with her to the 1800s. It's a dart that uses a mixture of pheromones, grapefruit juice and applied phlebotinum (it's science!) to "imprint" the dinosaur to a given subject.
It's all very complicated, but quite rational and plausible, I assure you.