Pecten sp. (= Chlamys sp.)

Chlamys sp.(†)

Shell of the Chlamys genus, one of the most frequent fossils in the marine Eocene of Bages, found in Castellgalí.
Main groups of fossil shellfish in the county of Bages are bivalves (clams, mussels, oysters) and gastropods (snails). [photo Florenci Vallès]

See also the article Pedres milionàries, in Catalan, by Jordi Badia.