Trixie (Night at the Museum)

Trixie is a Triceratops, who appeared in the film Night at the Museum: Secret of the Tomb in the form of a skeleton.

Night at the Museum: Secret of the Tomb
Trixie approaches Larry, Nicky, Teddy, Ahkmenrah, Sacagawea, Jedediah, Octavius, and Attila the Hun at the British Museum of Natural History within a hallway filled with hunting trophies. Remembering how he trained Rexy, Larry throws a bone at Trixie and she catches it like a puppy dog, just like Rexy. However, Trixie later breaks the bone in pieces after biting it and chases the group.

The group try to hide inside a room after locking the doors but Trixie still manages to break in and attack them. All seems lost until they run into a wax figure of Sir Lancelot, who manages to defeat the beast and send it running off like a cowardly dog.

Later at the end, Lancelot has finally managed to train Trixie and give her her name. 3 years later, after Larry finally went to college and became a teacher, all exhibits from the British Museum including Trixie were brought into the Museum of Natural History in New York along with the Tablet of Ahkmenrah as well. Trixie is last seen playing and dancing with Rexy as new best skeleton friends.