I'll be honest here, there are some theories that paleontologists have come up with recently that I disagree with. Although the Brontosaurus -> Apatosaurus isn't one of them, I felt like that was kind of a cue.
The main ones I disagree with are how some think the Tyrannosaurus Rex was a scavenger instead of a predator, and how there's research being done about the Velociraptor having feathers. With the T-rex one, I'm sorry, I don't know what whoever thought of this theory was thinking. You don't get a creature THAT BIG living off of scraps, granted they were pretty big scraps, but still. The T-rex skull even has characteristics of a predator.
As for the Velociraptor theory, it's not so much the theory I disagree with, but how they try to portray it. Velociraptors were viscious pack hunters, we know that, we have fossil evidence of that. It stands to reason they would try to be stealthy on the hunt, in my opinion, because of that. I'm sorry, but having like three-inch long feathers sticking out like they have been ruffled does not seem stealthy. My picture of a Velociraptor is either the classic scales or if they did have feathers, something closer to the Vivosaur, V-Raptor, in the Fossil Fighters game.
@Tatsujin, I plan on it but, at the moment, money issues have kept me from going to college. That's why I'm still just aspiring. XD