Mojoceratops

I ran across the first skull in the basement of the American Museum of Natural History. At the time, I was looking for evidence of T. rex feeding, traces, as part of the T. rex cannibalism paper. I saw this beautiful ceratopsian frill, and recognized it as the type of thing that was pretty common in Dinosaur Park. And just out of curiosity I was wondering what species it was- and I realized, I didn't know.