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  • Shark Trace Fossil




    SHARK ENTEROSPIRAE : Pre-Voided Shark Feces

    Kingdom: Animalia
    Phylum: Chordata
    Class: Chondrichthyes
    Order: indet.
    Family: indet.
    Genus: indet.
    Species: sp.

    Geological Time Scale

    Eon: Phanerozoic
    Era: Cenozoic
    Period: Neogene
    Sub Period: None
    Epoch: Miocene


    Collector: me
    Date Collected: 07/03/2017
    Acquired by: Field Collection


    Length: .5 "


    St Leonard
    Calvert Cliffs
    United States


    There has been much debate about the identity of this strange item on the forum. I finally solved the mystery thanks to the (click next) Calvert Marine Museum web site . These are a reasonably common find on the beach near Matoaka Cabins. They vary in size and shape, owing to the different species and ages of the sharks that produced them as much as the teeth shed by the same sharks. What they all seem to have in common is the black, polished surface, the generally oval shape (which can vary in proportions), and the appearance of an outer coating that splits on one side.

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