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    davidcpowers
    • I collected this Leptaena brachiopod from the red brown mudstone resting three feet above the top of the first out crop of breccia limestone. The location is above the rest-stop on highway 89 S before Riceville Rd. The formation is the lower part of the Kibbey. Leptaena Brachiopods dominate along with three types of bryozoa and crinoids. Also found clams and a part of a plant fossil. The setting was once a lagoon. 

    Taxonomy

    Kingdom: Animalia
    Phylum: Brachiopoda
    Class: Stophomenata
    Order: Strophomenida
    Family: Rafinesquinidae
    Genus: Leptaena
    Species: Leptaena sp.
    Author Citation Dolman 1828

    Geological Time Scale

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

    Stratigraphy

    Big Snowy Group
    Kibbey Formation

    Provenance

    Collector: David C. Powers
    Date Collected: 01/13/2019
    Acquired by: Field Collection

    Dimensions

    Width: 1.7cm
    Height: 1.4cm

    Location

    highway 89 S above rest-stop before Riceville
    Cascade County
    Montana
    United States

    Comments

    I collected this Leptaena brachiopod from the red brown mudstone resting three feet above the top of the first out crop of breccia limestone. The location is above the rest-stop on highway 89 S before Riceville Rd. The formation is the lower part of the Kibbey. Leptaena Brachiopods dominate along with three types of bryozoa and crinoids. Also found clams and a part of a plant fossil. The setting was once a lagoon. 



    User Feedback


    Tidgy's Dad

    Posted · Report

    Love Leptaena.

    One of my favourite brachiopod genera. :)

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