What is this?

Jim: Can you circulate these photos? Seeking help. Sincerely, Wayne May

Begin forwarded message:

From: "bobdraper" <bobdraper@att.net>

Date: April 2, 2009 3:57:04 PM CDT

To: <wayne@ancientamerican.com>

Subject: can you tell me what this is

Reply-To: "bobdraper" <bobdraper@att.net>

I found this in the Thompson River in north MO. If you can tell me anything about it it would be good .

i found this in the thompson river in north mo. if you can tell me anything about it it would be good .