ocr: at Howe Quarry, in western Wyoming. When a large group of fossils such as this is discovered, paleontologists draw a detailed diagram showing the position of each bone before excavating the fossils from the surrounding rock. This fossil accumulation may have resulted from the mass death of animals that became mired in muddy terrain or a soft riverbank. Barosaurus belongs to a family of immense plant-eating dinosaurs, the sauropods, which includes the largest creatures ever to have roamed the land. Allosaurus is a meat-eating dinosaur related to the fearsome Tyrannosaurus rel. Barosaurus skelet ...
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