With some Disney attractions repeated around the world, it can sometimes be difficult to keep them straight. Disney isn't even very good at it themselves; they often use the "wrong" version of a ride or attraction for promotional purposes. For example, they often use pictures of the superior DISNEYLAND version of Fantasmic! to promote the Florida version. In the case of Big Thunder Mountain Railroad, however, the person pulling the clip or picture probably just got confused. Here's how to tell the difference:
At DISNEYLAND, the trains run to the right in front of the dinosaur fossil.
In Walt Disney World, the trains run to the left in front of the fossil, who also faces a different direction.