INTERESTING spiral patterns (Fig. 1) were found on the growing inner surface of nacre when the fresh inner surface of pelecypod shells was observed under a microscope using a vertical illuminator.

This is the metadata section. Skip to content viewer section. Bar-Yosef Mayer D.E. 2005. Pelecypod Beds Revisited: Glycymeris in Bronze Age Sites. JIPS 35:45-52 ...

Mollusca, Pelecypoda ("clams, scallops, oysters, mussels") - Animals in the class pelecypoda are sluggish bottom-dwellers in marine or fresh water. Good specimens of pelecypod fossils are uncommon in ...