An Enormous Bone Was Found
It was soon clear that the bone belonged to some type of gigantic prehistoric animal. John, having grown up on a farm, soon recognized the objects on the discovery as marrow lines.
As the dig continued, John predicted that the object was a leg bone and the animal was most certainly very large as the knee joint was similar in size to a soccer ball. The family decided to keep their find a secret and spent the next two years carefully digging in the area, revealing a growing collection of prehistoric bones.