Phylum Mollusca and the class is Gastropoda making this creature a small snail. Its distinctive shell makes it look sort of like a very smal...

Here is a clam I found at Speed Quarry, Indiana back in April. Until a few days ago I did not know its scientific name until I came across ...

Here is the bottom of a crinoid calyx or head. It is from Joe Prather Highway which is a location about an hour south of Louisville, Kentuck...