User blog comment:Dinosaurus1/Fate of the Pachyrhinosaurus?/@comment-7690264-20180220223231/@comment-23825763-20180220233437

That's not even remotley the case. Sinoceratops and Pachyrhinosaurus look completly different and are in different clades of cerotopsians. How could they possibly be the same animal? They aren't the same in the JP universe or in any universe for that matter.

Also, maybe the Sinoceratops-esque design wasn't their original plan. Maybe they planned to have it look more like Pachyrhinosaurus, but the design ended up looking like Sinoceratops, so they changed the name, but only after the marketing was released. I know its convuluted, but it's better than saying that two completly different ceratopsians are the same species.