The first person to spot it was a shovel operator working the overnight shift, eyeing a glint of white as he scooped up a giant mound of dirt and dropped it into a dump truck.

Later, after the truck driver dumped the load, a dozer driver was ready to flatten the dirt but stopped for a closer look when he, too, spotted that bit of white.

Only then did the miners realize they had unearthed something special: a 7-foot-long mammoth tusk that had been buried for thousands of years.

91裸聊视频淲e were very fortunate, lucky to find what we found,91裸聊视频� said David Straley, an executive of North American Coal, which owns the mine.

The miners unearthed the tusk from an old streambed, about 40 feet (12.1 meters) deep, at the Freedom Mine near Beulah, North Dakota. The 45,000-acre (18,210-hectare) surface mine produces up to 16 million tons (14.5 million metric tons) of lignite coal per year.

After spotting the tusk, the crews stopped digging in the area and called in experts, who estimated it to be 10,000 to 100,000 years old.

Jeff Person, a paleontologist with the North Dakota Geologic Survey, was among those to respond. He expressed surprise that the mammoth tusk hadn91裸聊视频檛 suffered more damage, considering the massive equipment used at the site.

91裸聊视频淚t91裸聊视频檚 miraculous that it came out pretty much unscathed,91裸聊视频� Person said.

A subsequent dig at the discovery site found more bones. Person described it as a 91裸聊视频渢rickle of finds,91裸聊视频� totaling more than 20 bones, including a shoulder blade, ribs, a tooth and parts of hips, but it91裸聊视频檚 likely to be the most complete mammoth found in North Dakota, where it91裸聊视频檚 much more common to dig up an isolated mammoth bone, tooth or piece of a tusk.

91裸聊视频淚t91裸聊视频檚 not a lot of bones compared to how many are in the skeleton, but it91裸聊视频檚 enough that we know that this is all associated, and it91裸聊视频檚 a lot more than we91裸聊视频檝e ever found of one animal together, so that91裸聊视频檚 really given us some significance,91裸聊视频� Person said.

Mammoths once roamed across parts of Africa, Asia, Europe and North America. Specimens have been found throughout the United States and Canada, said Paul Ullmann, a University of North Dakota vertebrate paleontologist.

The mine91裸聊视频檚 discovery is fairly rare in North Dakota and the region, as many remains of animals alive during the last Ice Age were destroyed by glaciations and movements of ice sheets, Ullmann said.

Other areas have , such as bonebeds of skeletons in Texas and South Dakota. People even have found in the permafrost of Canada and Siberia, he said.

Mammoths went extinct about 10,000 years ago in what is now North Dakota, according to the Geologic Survey. They were larger than elephants today and were covered in thick wool. Cave paintings dating back 13,000 years depict mammoths.

Ullmann calls mammoths 91裸聊视频渕edia superstars almost as much as dinosaurs,91裸聊视频� citing the 91裸聊视频滻ce Age91裸聊视频� film franchise.

This ivory tusk, weighing more than 50 pounds (22.6 kilograms), is considered fragile. It has been wrapped in plastic as the paleontologists try to control how fast it dehydrates. Too quickly, and the bone could break apart and be destroyed, Person said.

Other bones also have been wrapped in plastic and placed in drawers. The bones will remain in plastic for at least several months until the scientists can figure how to get the water out safely. The paleontologists will identify the mammoth species later, Person said.

The mining company plans to donate the bones to the state for educational purposes.

91裸聊视频淥ur goal is to give it to the kids,91裸聊视频� Straley said.

North Dakota has a landscape primed for bones and fossils, including dinosaurs. Perhaps the best known fossil from the state is that of with fossilized skin, Ullmann said.

The state91裸聊视频檚 rich fossil record is largely due to the landscape91裸聊视频檚 91裸聊视频渓ow-elevation, lush, ecologically productive environments in the past,91裸聊视频� Ullmann said.

North Dakota91裸聊视频檚 location adjacent to the Rocky Mountains puts it in the path of eroding sediments and rivers, which have buried animal remains for 80 million years or more, he said.

91裸聊视频淚t91裸聊视频檚 been a perfect scenario that we have really productive environments with a lot of life, but we also had the perfect scenario, geologically, to bury the remains,91裸聊视频� Ullmann said.

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Jack Dura, The Associated Press