Great to know this group exists. I’ve collected fossils all over the Mid Atlantic for fun over the last few decades and now live on the coast in far northeastern Maine. Not many fossils here because of glacial scour, but there are some pockets of marine fossils here and there. So I was surprised when my wife brought this home after a walk to our town’s beach she brought home a rock in the photos. Looking closely, I could believe that a matching footprint was worn away just to the left. That is, if this is indeed a footprint. Thanks for your thoughts.