Sharptooth is a large male[1] Tyrannosaurus Rex,[2] who is the main antagonist in The Land Before Time. It is unlikely that Sharptooth is his real name, as it is also the name of his species; in production art, he is simply labelled "Tyrannosaurus Rex".Sharptooth searchingSharptooth and the thornsWilhelmina WillAdded by Wilhelmina WillContents [show] CharacterPersonality"Although one of his eyes were swolen shut, he was growling softly, enjoying his moment of revenge."— The Narrator, descriping Sharptooth's thoughts in The Land Before Time: The Illustrated Story.Little of Sharptooth's personality is seen in the movie. However, the book that was sold along with the original movie gives more insight on his actual thoughts.Sharptooth appears to be very persistent, given by the fact that he co