Tiny Squalicorax Tooth

About midday we went to a road-side site my Dad knew about; it was actually very picturesque. There was a clear creek running by the road, the reeds were high and the cottonwood trees provided a lot of shade.

There were also some beavers nearby:

However, on the far side of the bank we came across a plethora of tiny Squalicorax teeth. In this picture there's one - can you find it???