In 1947, a crew from the American Museum of Natural History discovered dinosaur fossils at Ghost Ranch in northern New Mexico. They excavated the site for two years, removing more than a dozen large blocks of rock densely packed with dinosaur bones. These blocks were distributed to museums across the country, and one arrived at the Cleveland Museum of Natural History in the 1960s. In the 1980s and '90s, a single Museum volunteer, Dale Zelinski, spent approximately eight years preparing the Museum's Coelophysis block.
