I have collected a considerable amount of Cowshark teeth, over the years. All have been found in the Calvert Cliffs.These include whole ones and partials. All of the teeth that I have found have the same characteristic except one. The serrations that are on the first blade, are small, stay close to the blade, and follow the contour of the blade going up. Except for one that has larger cusps, that grow out and away from the first blade. I have seen cowshark symphaseals and I know this is not one. But my question is this odd tooth, is it just from a different placement in the jaw, a pathological tooth, or a different species. Any help would be gladly apprecieted. 1st pic is of the typical teeth. 2nd pic is of tooth in question. Thanks for looking.