My son, who works in a coal mine, has seen dinosaur tracks on the ceiling before, but has had no way to recover them.

This time he found one that had fallen intact to the ground and brought it home. Its very fragile, as coal begins to deteriorate once it is out of its comfort zone.

It measures a full 15" from the tip of Toe 1 to Toe 3. There may be a 4th toe, but its hard to tell. He knew what it was because my Dad had one (its mine now). Plus we live in dinosaur country -- there are at least 3 dinosaur museums/exhibits in Utah that I know of.

But how to preserve it from flaking apart?