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  • Boletechinus Sea Urchin

    Images:

    I_gotta_rock

    By I_gotta_rock (edited)

    Taxonomy

    Sea Urchin

    Kingdom: Animalia
    Phylum: Echinodermata
    Class: Echinoidea
    Order: Temnopleuroida
    Family: Zeuglopleuridae
    Genus: Boletechinus
    Species: Boletechinus delawaricus
    Author Citation Lewis, 1986

    Geological Time Scale

    Eon: Phanerozoic
    Era: Mesozoic
    Period: Cretaceous
    Sub Period: None
    Epoch: Late

    Stratigraphy

    Monmouth Group
    Navesink Formation

    Provenance

    Collector: Heather Siple
    Date Collected: 10/25/2020
    Acquired by: Field Collection

    Dimensions

    Diameter: 7 mm

    Location

    Reedy Point, North side
    New Castle County
    Delaware
    United States

    Comments

    This specimen comes from the 1980 dredge spoils of the C and D Canal. The type specimen for this species comes from the Navesink Formation exposure of the same canal, not far away.

     

    Known by locals, it was not actually described until 1986.

     

    Although not the most common of species at this locality, and almost unknown outside of Delaware, these miniscule urchins were nonetheless plentiful at the Reedy Point spoils. Recent excavation for barrow removed most of the sand where my specimen was found.

    Go to fossils Echinoids

    User Feedback


    JohnJ

    Heather, could you post oral and lateral views?  Thanks.  

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    I_gotta_rock

    Can do, but probably not for a couple days. 

     

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    JohnJ

    Thank you. 

     

    Multiple views are typical to display defining characteristics.  ;)

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    historianmichael

    historianmichael

    Posted

    This is a really pretty sea urchin. Great find!

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    sixgill pete

    Thanks for the extra pictures Heather. Beautiful urchin.

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    I_gotta_rock
    19 minutes ago, sixgill pete said:

    Thanks for the extra pictures Heather. Beautiful urchin.

    My pleasure, and pain. It's tough doing a stacked photo of something that's less than 1 cm in diameter, on its edge, without a microscope cam. It seemed important to have it in the research collection, though. This is one of only two I've ever found intact and four total in 16 years of hunting in the same locality!

     

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