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  • Orbiculoidea missouriensis Shumard, 1858


    Images:

    oilshale
    • Lit.:

      EDWIN K. MAUGHAN and ALBERT E. ROBERTS (1967): Big Snowy and Amsden Groups and the Mississippian-Pennsylvanian Boundary in Montana. GEOLOGICAL SURVEY PROFESSIONAL PAPER 554 7 B

       

      Lutz-Garihan, A.B. (1979). Brachiopods from the Upper Mississippian Bear Gulch Limestone of Montana. Neuvieme Congres International de Stratigraphie et de Geologie du Carbonifere. Compte Rendu Vol. 5: 457-467 pp.

       

      EDIT: Subperiod is Mississippian and Epoch is Late.

    Taxonomy

    Lamp Shell

    Kingdom: Animalia
    Phylum: Brachiopoda
    Class: Lingulata
    Order: Lingulida
    Family: Discinidae
    Genus: Orbiculoidea
    Species: O. missouriensis
    Author Citation Shumard, 1858

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Carboniferous
    Epoch: Early
    International Age: Serpukhovian

    Stratigraphy

    Big Snowy Group
    Heath Shale Formation

    Provenance

    Acquired by: Purchase/Trade

    Dimensions

    Diameter: 2cm

    Location

    Bear Gulch
    Fergus County
    Montana
    United States

    Comments

    Lit.:

    EDWIN K. MAUGHAN and ALBERT E. ROBERTS (1967): Big Snowy and Amsden Groups and the Mississippian-Pennsylvanian Boundary in Montana. GEOLOGICAL SURVEY PROFESSIONAL PAPER 554 7 B

     

    Lutz-Garihan, A.B. (1979). Brachiopods from the Upper Mississippian Bear Gulch Limestone of Montana. Neuvieme Congres International de Stratigraphie et de Geologie du Carbonifere. Compte Rendu Vol. 5: 457-467 pp.

     

    EDIT: Subperiod is Mississippian and Epoch is Late.



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