After our high waters receded, weathered dead mussel shells (sometimes called sub-fossils) that have been scoured up by the surging water are strewn about the river and banks. Here are some of the more interesting shells from my walk on Sunday morning.
The little ones are non-native Asian clams.
More Asian clams, there are millions of these in the Olentangy
And finally, ancient sea creatures embedded in some Delaware limestone.