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    Articulate Brachiopod


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    Images:

    DPS Ammonite
    • This is a less common brachiopod collected at the rich Finis Shale site in the spillway of the Jacksboro Reservoir. It is often confused with the more common Composita subtilita which has a stronger suculus fold and no small spines.

    Taxonomy

    Articulate Brachiopod

    Kingdom: Animalia
    Phylum: Brachiopoda
    Class: Rhynchonellata
    Order: Athyridida
    Family: Athyrididae
    Genus: Cleiothyridina
    Species: C. orbicularis
    Author Citation McChesney 1859

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Carboniferous
    Epoch: Late

    Stratigraphy

    Graham Formation
    Finis Shale Member

    Provenance

    Collector: me
    Acquired by: Field Collection

    Dimensions

    Blank: 18mm
    Width: 16mm

    Location

    Jacksboro Reservoir Dam spillway
    Jack County
    Texas
    United States

    Comments

    This is a less common brachiopod collected at the rich Finis Shale site in the spillway of the Jacksboro Reservoir. It is often confused with the more common Composita subtilita which has a stronger suculus fold and no small spines.

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