I see the pictures of fish etc on the provided link. Again, I don't understand how this could be preserved on the surface of a rock, or on mud, etc.
In your experience, have ever seen some biological matter rest somewhere, without decaying? Have you ever dug into the ground or mud and found a bone there? The closest I come to that is when I step in mud, and a stick is underneath... but this would be frail and degraded. In all my experience biological matter is broken down very quickly.
I see the pictures of fish etc on the provided link. Again, I don't understand how this could be preserved on the surface of a rock, or on mud, etc.
In your experience, have ever seen some biological matter rest somewhere, without decaying? Have you ever dug into the ground or mud and found a bone there? The closest I come to that is when I step in mud, and a stick is underneath... but this would be frail and degraded. In all my experience biological matter is broken down very quickly.