Cardiidae

Many cockles found on the beach are fossils. They date back to the Eemian interglacial period. In those days, a warmer climate dominated the North Sea region. There were many species no longer found nowadays: poorly-ribbed cockles, spiny cockles, rough cockles and little cockles. Most of them closely resemble the present (common) cockles, but as a rule are much thicker. Due to the age, the shells are opaque and dark brown to black in color, and often worn.

Barcode of Life Data Systems (BOLD) Stats
    Specimen Records: 861 Public Records: 741   Specimens with Sequences: 792 Public Species: 31   Specimens with Barcodes: 475 Public BINs: 38   Species: 48              Species With Barcodes: 39                              

Access Published & Released Data: Download FASTA File

Collection Sites: world map showing specimen collection locations for Cardiidae