Gastropods commonly called Snails.

This is a great example of a Silurian snail from the Rochester Shale formation.

Gastropods belong to the phylum Mollusca. The class of fossil Gastropoda in my collection is comprised of snails from saltwater. I have not yet found any freshwater snails in my travels.

Today snails can be found in salt and freshwater as well as on land.

NATICONEMA niagarensis
Silurian Period
Rochester Shale Formation
Caleb’s Quarry
Middleport, New York