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  • Anthroacantha carpenteri

    Images:

    nivek1969

    By nivek1969 (edited)

    Taxonomy

    Crinoid

    Kingdom: Animalia
    Phylum: Echinodermata
    Class: Crinoidea
    Order: Monobathrida
    Family: incertae sedis
    Genus: Anthroacantha
    Species: Anthroacantha carpenteri
    Author Citation Hinde, 1885

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Devonian
    Sub Period: None
    Epoch: Middle

    Stratigraphy

    Silica Shale Formation

    Provenance

    Date Collected: 08/17/2017
    Acquired by: Purchase/Trade

    Dimensions

    Length: 2.48 "
    Width: 2.17 "
    Height: 2.48 "
    Thickness: 1.60 "

    Location

    Sylvania
    Lucas county
    Ohio
    United States

    Comments

    This silvery gray crown of a fossil Crinoid is quite impressive for its vascular arrangement of arms and protruding aboral cup. However, it is the nature of
    its preservation that makes this piece very special. The fossil is pyritized as the metallic mineral Pyrite replaced the organic matter during mineralization.

    Go to fossils Crinoids & Blastoids

    User Feedback


    oilshale

    Excellent addition to collections.

    Thanks

    Thomas

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    sixgill pete

    This is a gorgeous fossil. As Thomas stated, an excellent addition to collections.

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    Innocentx

    WOW! and great photos! What is your camera?

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    nivek1969

    The first image is not my photo, from the dealer, the close-ups I took with my old iPhone 5S with a clip on macro lens attachment. It is a piece that I saw and had to have. Imagine finding something like this?! It makes me want to take a trip to Lucas County, Ohio! 

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    Tidgy's Dad

    Tidgy's Dad

    Posted

    It is a wonderful specimen. 

    I love it! :wub:

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    nivek1969

    I see the measurements are listed as cm when it should be inches. I guess I screwed up there somehow. How can you edit this information?

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    nivek1969
    2 minutes ago, nivek1969 said:

    I see the measurements are listed as cm when it should be inches. I guess I screwed up there somehow. How can you edit this information?

    never mind. I fixed it. 

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    Thebes

    Indeed a keeper of a specimen!  Appears that the secondary re-crystallization of FeS is gentler on the substrate than say the prevalent siliceous takeovers.  

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