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David Hacker of Silver Spring, a volunteer at the Laurel Dinosaur Park, discovered a dinosaur bone Sept. 10 after it was partially uncovered by heavy rains. The bone, possibly from an Astrodon or other large dinosaur, could be 110 to 112 million years old. Smithsonian scientists are now cleaning and examining the bone at the Natural History Museum in Washington, D.C. Steve Jabo, Fossil Preparator at the Smithsonian, says it is one complete bone, but scientists are not yet sure what it is. It may be the top of a limb bone or possibly a claw or body armor, Jabo said.
Visitors can see the bone being worked on in the museum's prep lab, which is near the Maryland exhibit in the back of the dinosaur hall.