archaeologists raised a metal part to the surface. molluscs on metal

metal structure was found at the bottom of the river. according to the condition, it lay on the bottom for a very long time, and molluscs appeared on it. River tricorn, or river dreisen, is a common species of bivalve molluscs of the tricorn family. It is found in fresh and brackish waters of the Black and Caspian Sea basins.
#mollusks