What makes this find more unique is that Erik contacted me in March 2010 with a picture of another rostroconch fossil his son had found. He told me it was found it about the same spot as the first one found about 14 years ago. Amazing! Thanks to Erik for the images and letting me know about this nice fossil find.
https://louisvillefossils.blogspot.com/2010/03/rostroconch-fossil-from-kentucky.html