Here's another one I found in the "Cookie Cutter Creek" matrix I got from a Fla member - so no other age/location info is available. Looks like vert, but from what I don't know. My initial guess is a small mammal thoracic vertebrae, but I might be way off base with that. It might not even be mammal but maybe reptile or fish? Hopefully someone will share their thoughts and knowledge on this one. (Should I have posted this in the Micro section instead of here? Moderators please help.) Sorry for the poor quality pics but I took them with a "point and shoot" camera, held by hand to the eyepiece of my microscope; and the specimen is also very fragile, so I wanted to minimize handling. The first pic is for scale only -- scale is 1mm. Thanks for looking.