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  • Athleta rarispina (Lamarck, 1811)


    Images:

    FranzBernhard

    Taxonomy

    Volute Snail

    Kingdom: Animalia
    Phylum: Mollusca
    Class: Gastropoda
    Order: Neogastropoda
    Family: Volutidae
    Genus: Athleta
    Species: A. rarispina
    Author Citation Lamarck (1811)

    Geological Time Scale

    Eon: Phanerozoic
    Era: Cenozoic
    Period: Neogene
    Epoch: Miocene
    International Age: Langhian

    Stratigraphy

    unknown formation
    Florianer Schichten

    Provenance

    Collector: Franz Bernhard
    Date Collected: 11/23/2016
    Acquired by: Field Collection

    Dimensions

    Length: 33 mm

    Location

    Höllerkogel Hill
    St. Josef
    Styria
    Austria

    Comments

    Volute snail Athleta rarispina on matrix. Note the very well preserved borings of an unknown organism. Exact locality is Höllerkogel-18 in my own documentation. It is a tiny outcrop (about 1-2 square meters) in a densely wooded, very steep area southwest of St. Josef, Styria, Austria. This small outcrop, composed of a medium grained, quartz-rich, somewhat limonitic sand yielded, from November 2016 to May 2018, at least 80 species of gastropods and bivalves and is far from exhausted. Most of the fossils are characterized by a partial limonitic staining and usually a very good preservation. The species A. rarispina is moderately abundant in this outcrop.

     

    The sediments in the area belong to the "Florianer Schichten", which are part of the western Styrian basin at the eastern margin of the Alps.

    The "Florianer Schichten" are about 15 Ma old (Langhian, or "Badenian" in Paratethys stratigraphic terms).



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