Zuul is the star of the exhibit "Zuul: Life of an Armoured Dinosaur" at the Royal Ontario Museum in Toronto. Apparently Zuul was a "6-metre-long, 2.5-ton, plant-eating ankylosaur." Unlike the rubber monster puppet, this Zuul was covered in armor, with a "menacing" tail that could club the crap out of its enemies. And the museum isn't above playing up the Ghostbusters angle, either. After unpacking whatever dusty crate they use to contain Dan Aykroyd, the museum had him endorse the new dino in a video on Twitter.
In any case, if you're in Toronto, why not swing by the museum to learn about an exciting newfound part of our natural history? Or alternatively, ignore all of the boring educational parts and just pretend that scientists excavated the remains of an evil interdimensional being.