Carnosaur

Carnosaur is a 1993 American science fiction horror film written and directed by Adam Simon. The film stars Diane Ladd, Raphael Sbarge, Jennifer Runyon, and Harrison Page. Loosely based on the 1984 John Brosnan novel of the same name, it follows characters Doc Smith and Ann Thrush in their efforts to thwart Dr. Jane Tiptree's plan to exterminate the human race with a lethal virus and replace them with her own genetically created dinosaurs.