[h=2]PLEASE READ BEFORE POSTING ITEMS IN "WHAT IS IT?"[/h]
IMPORTANT!
When posting in "What Is It?", please give members the information they need to help identify your find:
1. Post sharp closeup photos of both the front and the back.
2. State the actual size of the item. Also, if possible, put something with it in the photo for scale: a common U.S. coin, a ruler, etc.
3. If there are any inscriptions which cannot be easily read in the photos, type them in full in your post.
4. If there are maker's marks, numbers, symbols, or other marks on the back which are not easily seen in the photo, post a closeup or a drawing of them.
5. Indicate the composition of the item. For example: "thin brass, filled with lead on the back."
• Do not deliberately withhold any information just to "have fun" seeing if members can guess correctly.
• Once your item has been identified, don't forget to mark it "Solved."
• Finally, if someone identifies your item or provides other helpful information, take time to post your appreciation— and maybe send a PM to say, "Thanks!" too.
Neat fossil. Definitely Echinoderm-related and possibly crinoidal, but I don't think so. Looks to me like the reverse impression (a fossil cast) of part of a sea urchin test (shell) showing the spine plates.
Could we see the ends please, since it does have an overall shape reminiscent of a crinoidal cup?