I headed back to the North Sulfur River yesterday, trying out a new access point. I haven’t been finding ammonites at NSR, but found these yesterday. Click the photos to be able to zoom in and get a closer look.

I also found what look like mosasaur bones. The top left is a vert, the top middle looks like a transverse broken off a vert, and that looks like a rib on the left. I’m not sure what the smaller lower bones are.