The Great Inland Seaway

The panel lists Deinonychus only as the model for the film's raptors. It is a Montana animal. In late August 1964 John Ostrom and Grant Meyer of Yale's Peabody Museum found its bones near Bridger, in the Early Cretaceous Cloverly Formation, a land deposit rather than this sea's floor. Ostrom's February 1969 description of a fast, agile predator, illustrated with a running sketch by a student on the dig, Robert Bakker, began what Bakker later called the dinosaur renaissance, and its likeness to the early bird Archaeopteryx revived the case that birds descend from dinosaurs.

Where it stands

More markers nearby

• Park City — steps away
• The March of the Montana Column — steps away
• Columbus — steps away
• The Bozeman Trail — steps away