I am not sure about the names of the dino-characters that walk through Dinoland, but just to clarify...
The "bad guy" dinosaur on the Dinosaur ride, and the fossil cast in the queue of that attraction is a Disney-creationa called Carnotaurus. It's essentially a T-Rex with horns.
Dino-Sue is a cast of a real T-Rex fossil that is located near the entrance of the Dinosaur ride courtyard (not the entrance to the actual land, that's some sort of a Sauropod).
The dinosaurs in Ellen's Energy Adventure are based on real specimen, so there is no Carnotaurus on there as far as I know.