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  Expedition: Treasures Amazing Animals Dinosaurs and their Descendants Disappearing Acts Fifty Treasures Under the Sea Up in the Air World Cultures

Every bone in this mastodon skeleton is real. Discovered in 1845, it was the first entire American mastodon skeleton found in the United States, and is still one of the most complete such skeletons known. It was uncovered by a crew digging for peat fuel less than 100 miles from New York City, in a bog near the town of Newburgh, in Orange County, New York. When found, the mastodon was still in the position in which it had died some 11 thousand years ago, standing upright, with its legs thrust forward and its head tilted upward, apparently gasping for air.

This specimen is named for John Warren, a professor of anatomy at Harvard University who bought the remains, wrote about them, and displayed them in a small museum in Boston. The Warren Mastodon was acquired by the American Museum of Natural History in 1925. Mastodons, like living elephants, are proboscideans. Yet unlike elephants today, mastodons ranged widely over the northern continents. Other proboscidean skeletons unearthed in North America are displayed in the Museum near the Warren Mastodon. One of them, Gomphotherium, a distant relative of the mastodon, lived 10 million years ago and was discovered in South Dakota. Another is the skeleton of a mammoth that died approximately 20 thousand years ago, and was collected in Indiana. (Mammoths were the giants among proboscideans, and are more closely related to living elephants than is the mastodon.)

The discovery of the mastodon skeleton, and Warren's serious treatment of it, mark the beginning of vertebrate paleontology in this country.