The little guy is a Deinonychus. Research on this dinosaur has been described as one of the most important single discoveries of dinosaur paleontology. The discovery of this active, agile predator changed perceptions about dinosaurs being cold-blooded plodding beasts and opened the door to speculation that some dinosaurs may have been active and warm-blooded.
The head is a pentaceratops that has five horns instead of a triceratops which has three. This type (pentaceratops) has only been found here in the San Juan Basin.
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