How a giant predator of prehistoric seas was discovered — twice
After 80 million years, a giant fossil jaw has quite a story to tell. Back in the age of the dinosaurs, Tylosaurus proriger was a fearsome predator — a bus-sized aquatic reptile with a crushing snout, daggerlike teeth, and knack for swallowing prey whole. How its bones wound up at Harvard is a tangled yarn involving a Wild West stagecoach station, the early western railroads, the infamous “Bone Wars” between rival fossil hunters, and a founding scholar of natural history.