So, do you have any idea of what the imprints come from? I was wanting it to be something really out of this world so looked up a 'one-toed sloth' but it doesn't really fit exactly. The deep print looks to be about 6" long and a Pterosaur right or left manus print looks similar. Now that I have copied all that from Google it tells you I do not know jack stuff about what I am talking about but I do love ancient stuff. Would also love to know exactly from what the print originated. Is it something as simple as a shell?