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  • Chesapecten madisonius


    sixgill pete


    Scallop Shell

    Kingdom: Animalia
    Phylum: Mollusca
    Class: Bivalvia
    Order: Pterioida
    Family: Pectinidae
    Genus: Chesapecten
    Species: Chesapecten madisonius
    Author Citation (Say,1824)

    Geological Time Scale

    Eon: Phanerozoic
    Era: Cenozoic
    Period: Neogene
    Sub Period: None
    Epoch: Pliocene
    International Age: Zanclean


    Yorktown Formation
    Rushmere Member


    Collector: Don Rideout
    Date Collected: 06/11/2017
    Acquired by: Field Collection


    Length: 4 13/16 (122mm) "
    Width: 5 1/8 (131mm) "


    Tar River
    Edgecombe County
    North Carolina
    United States


    These pectens are very common in the Rushmere Member of the Yorktown Formation in cuts and bluffs along certain portions of the Tar River in North Carolina. Many are extremely worn and even crumble to pieces when handles. Specimens with double valves are not uncommon. This specimen is in exceptional shape. 


    The final picture of the 3 specimens is to illustrate the growth of the species. They are all double valves, and range from 1 /4 inch long to 5 5/8 inch long. 

    User Feedback



    Gorgeous scallop named in honor of James Madison and one of the first classified fossils in North America. Excellent specimen and in great condition.

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