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  • Dactylioceras (Orthodactylites) semicelatum (Simpson 1843)


    Images:

    Ludwigia

    Taxonomy

    Ammonite

    Kingdom: Animalia
    Phylum: Mollusca
    Class: Cephalopoda
    Order: Ammonitida
    Family: Dactylioceratidae
    Genus: Dactylioceras (Orthodactylites)
    Species: Dactylioceras (Orthodactylites) semicelatum
    Author Citation Simpson 1843

    Geological Time Scale

    Eon: Phanerozoic
    Era: Mesozoic
    Period: Jurassic
    Sub Period: None
    Epoch: Early
    International Age: Early Toarcian

    Stratigraphy

    Whitby Mudstone Formation

    Biostratigraphy

    tenuicostatum zone
    semicelatum subzone

    Provenance

    Collector: Byron Blessed
    Date Collected: 03/20/2011
    Acquired by: Purchase/Trade

    Dimensions

    Diameter: 7 cm

    Location

    Kettleness
    Whitby
    Yorkshire
    England

    Comments

    Typical pyrite preservation from this area in a concretion. This is the index fossil for the semicelatum subzone.




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