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    I_gotta_rock
    • Chesapectin nefrens is an index fossil for the Drum Cliff Member of the Choptank Formation. This example is particularly nice because the interior is almost completely layered in pearl.

    Taxonomy

    Scallop

    Kingdom: Animalia
    Phylum: Mollusca
    Class: Bivalva
    Order: Ostreoida
    Family: Pectinidae
    Genus: Chesapectin
    Species: C. nefrens
    Author Citation Ward and Blackwelder, 1975

    Geological Time Scale

    Eon: Phanerozoic
    Era: Cenozoic
    Period: Neogene
    Epoch: Miocene

    Stratigraphy

    Choptank Formation
    Drumcliff Member

    Biostratigraphy

    Shattuck Zone 17

    Provenance

    Collector: me
    Date Collected: 04/19/2016
    Acquired by: Field Collection

    Dimensions

    Diameter: 7"

    Location

    St Leonard
    Calvert County
    Maryland
    United States

    Comments

    Chesapectin nefrens is an index fossil for the Drum Cliff Member of the Choptank Formation. This example is particularly nice because the interior is almost completely layered in pearl.



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