Pentaceratops aquilonius

Pentaceratops aquilonius is another of these museum discoveries- I was rummaging around in the Canadian Museum of Nature, looking for material of Mojoceratops, and ran across some frill pieces from the Manyberries area of southeastern Alberta. Wann Langston described the animal in 1959 and noted (correctly) that it most closely resembled Anchiceratops compared to the ceratopsian material that had been described. In fact, it was far more similar to Pentaceratops.