
Originally Posted by
Mew Master
John Horner produced evidence in 2007 and 2009 at the Austin and Bristol SVP Annual Meetings for evidence that Pachycephalosaurus, Stigymoloch, and Drakorex are the same species, only at different developmental stages. Now, I was un-convinced (and when he presented at Bristol he kinda pissed off a lot of Ceratopsian paleontologists because he basically said Torosaurus was a more mature Triceratops), but he recently published an article that goes into further detail that made me re-asses this question and I'm open to the idea that they're the same species (actually you can congratulate yourself because looking up the issue brought up the paper, so pat yourself on the back for actually being useful instead of annoying).
If that's the case, then we're BOTH right because Pachycephalosaurus and Stigymoloch are the SAME THING!