Researchers Say Mammoth Tusk Could Date Back to 14,000 B.C.

In this June 2, 2012 frame grab provided by WOI-DT, he carries a mammoth bone on Saturday, June 2, 2012, that was found on his rural farm near Oskaloosa, Iowa. The find is rare because it appears to include much of the animal's skeleton undisturbed. That allows scientists to gather pollen and other plant evidence at the dig site that could reveal details about Iowa's environment more than 12,000 years ago. (AP Photo/WOI-DT)

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By Liz Blood

OSKALOOSA, Iowa (AP) — Researchers say they've found fragments of a 4-foot-long mammoth tusk at their dig on a southern Iowa farm.

The Oskaloosa Herald reports that the fragments were found Sunday at the site in rural Mahaska County.

A nearly complete mammoth skeleton was found buried there, and scientists have been gathering pollen grains, seeds and other plant material in an effort to determine what the area was like so many thousands of years ago.

Scientists say they've received the results of a radiocarbon date test on a log recently discovered at the site. Dave Brenzel, of the Indian Creek Nature Center, says the log dates back to 14,000 B.C.

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