I found these buried in a creek bed in south-east Kansas. I have been digging this spot for a few months and it is the first time in over 20 years of fossil hunting in this creek that I have ever come across these. I have no idea what they could be and have not had any luck trying to hunt down information on line. I hope someone here might be able to help me I.D. them. thank you all for having a look.
-Shawna bell