This is Gwangi the Allosaurus, from the 1969 film, The Valley of Gwangi. Gwangi was depicted as an Allosaurus, despite looking like more of a Tyrannosaurus. His name is the Native American word for lizard, and he lives in the Forbidden Valley in the movie, He is very aggressive, and would kill anything that gets in his way, even a poor Asian Elephant.

Gwangi was captured by Cowboys for a Rodeo, but was able to escape and kills the Elephant. The raging dinosaur would go on a rampage, and would end up in a cathedral, where he was wounded by one of the cowboys, Tuck Kirby.

Tuck chucks a flag at Gwangi, and throws a torch, causing Gwangi, and the cathedral for go up in flames. The dinosaur shrieked in pain from being burned alive and falling debris would crush him, ending his reign of terror for good.