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  • PENNSYLVANIAN PERIOD FOSSIL SEA URCHINS ARCHAEOCIDERIS ON SHALE FROM THE PENNSYLVANIAN PERIOD *EC010
  • PENNSYLVANIAN PERIOD FOSSIL SEA URCHINS ARCHAEOCIDERIS ON SHALE FROM THE PENNSYLVANIAN PERIOD *EC010
  • PENNSYLVANIAN PERIOD FOSSIL SEA URCHINS ARCHAEOCIDERIS ON SHALE FROM THE PENNSYLVANIAN PERIOD *EC010
  • PENNSYLVANIAN PERIOD FOSSIL SEA URCHINS ARCHAEOCIDERIS ON SHALE FROM THE PENNSYLVANIAN PERIOD *EC010
  • PENNSYLVANIAN PERIOD FOSSIL SEA URCHINS ARCHAEOCIDERIS ON SHALE FROM THE PENNSYLVANIAN PERIOD *EC010

    • PENNSYLVANIAN PERIOD FOSSIL SEA URCHINS ARCHAEOCIDERIS ON SHALE FROM THE PENNSYLVANIAN PERIOD *EC010

    $675.00
    SKU:
    EC010
    Shipping:
    Calculated at Checkout
    ID:
    Archaeocideris sp.
    FOUND:
    Brown Co., Texas, USA
    AGE:
    PENNSYLVANIAN: 300 - 296 million years
    SIZE:
    11.5" x 8.5" overall, largest urchin is 5" across
    CONDITION:
    NO ARTIFICIAL ASSEMBLY OF SPINE RECONSTRUCTION. BACK OF SHALE REINFORCED FOR STRENGTH.
    NOTE:
    A RARE, ALL NATURAL EXAMPLE WITH NATURAL SPINE POSITIONS - LARGE MULTIPLES LIKE THIS ARE NOT COMMON IN THE MARKET!
    :::
    Includes a LIFETIME GUARANTEE Certificate of Authenticity & Condition / History Sheet

    SOLD

    Product Description

    This is a spectacular, large slab with several large Archaeocederis sp. sea urchin fossils, complete with all spines, in their original rock matrix as found.  It dates to the Pennsylvanian Era, approximately 300 million years ago.  Extremely well-preserved on their original rock are four (with a partial fifth) large sea urchins and all their associated spines.  The color of the fossil urchins is a natural creamy gold color which contrasts with the greenish gray host rock.  The rock is fragile and has been reinforced on the back side.  All spines are located in their original natural positions and have not been arranged and glued to make an artificially aesthetic fossil as many of these we have seen.  The proof in this is the numerous spines that are still partially covered by the host rock surrounding them (rather than all the spines laying ON TOP of the surface of the rock).

    SEE MORE FOSSIL SEA URCHINS (ECHINOIDS)

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    ID Archaeocideris sp.
    FOUND Brown Co., Texas, USA
    AGE PENNSYLVANIAN: 300 - 296 million years
    SIZE 11.5" x 8.5" overall, largest urchin is 5" across
    CONDITION NO ARTIFICIAL ASSEMBLY OF SPINE RECONSTRUCTION. BACK OF SHALE REINFORCED FOR STRENGTH.
    NOTE A RARE, ALL NATURAL EXAMPLE WITH NATURAL SPINE POSITIONS - LARGE MULTIPLES LIKE THIS ARE NOT COMMON IN THE MARKET!
    :: Includes a LIFETIME GUARANTEE Certificate of Authenticity & Condition / History Sheet

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