Labels:text | font | screenshot | paper | document OCR: American rancher Kathy Wankel was walking in the Montana badlands on Labor Day in 1988 when she noticed some brownish bones sticking out of the ground on a hilltop. She dug down until she could remove the bones, and took them to the Museum of the Rockies in Bozeman, Montana. There, Jack Horner, a paleontologist (a scientist who studies fossils), identified them as the shoulder and arm bones of a Tyrannosaurus. One clue that helped him to identify the bones was the fact that they were discovered in the Hell Creek Formation - rocks dating from the end of the Cretaceous Period (144-65 MYA). These rocks are the source of most of the world's good Tyrannosaurus skeletons. The structure of the bones indicated a meat-eater; and their size, shape, and age all suggested a Tyrannosaurus. WEALTH OF BONES In May 1989, Pat Leiggi, a colleague of Jack Horner at the Museum of the Rockies, returned to the hillside of Kathy Wankel's find and uncovered part of a hipbone. Four months later, he revisited the site and found a skull. Lying beside it was a right leg. He also found some back bones, a strong indicator that a whole Tyrannosaurus skeleton lay buried in the side of the hill. The following year, in June 1990, a major professional excavation was carried out. An almost complete Tyrannosaurus skeleton was unearthed.
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