Argosirenites

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Argopecten is a genus of saltwater clams, of scallops, marine bivalve mollusks in the family Pectinidae. The Mollusca, common name molluscs or mollusks is a large phylum of invertebrate animals. There are around 85,000 recognized extant species of molluscs. This is the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. Molluscs are highly diverse, not only in size and in anatomical structure, but also in behaviour and in habitat.