I received this coprolite from a forum member a while back. It was partially coated in powdery iron oxide and didn't look too significant, so I didn't get to it right away. A soak and a scrub with a soft toothbrush revealed what looks to me like the remnants of a ray tooth plate. Now I'm trying to figure out who I got it from. Does anyone remember sending me a coprolite from New Kent County, VA?
Just goes to show...you can't judge a coprolite by it's coating