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  • Macrocephalites macrocephalus (Schlotheim 1813)


    Images:

    Ludwigia

    Taxonomy

    Ammonite

    Kingdom: Animalia
    Phylum: Mollusca
    Class: Cephalopoda
    Order: Ammonitida
    Family: Macrocephalitidae
    Genus: Macrocephalites
    Species: Macrocephalites macrocephalus
    Author Citation Schlotheim 1813

    Geological Time Scale

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

    Stratigraphy

    Wutach Formation

    Biostratigraphy

    Macrocephalus zone
    Macrocephalus subzone

    Provenance

    Collector: Roger Furze
    Date Collected: 09/11/2011
    Acquired by: Field Collection

    Dimensions

    Diameter: 15 cm

    Location

    Riedböhringen
    Blumberg
    Baden-Wuerttemberg
    Germany

    Comments

    This sample was also found on a plowed field, therefore the weather has gotten to it somewhat. What is seen is only a part of the phragmocone. These creatures certainly have earned their name. This is the index species for zone and subzone.

     

    Lithology: Macrocephalen-Oolith

    Old German Chronostratigraphy: Dogger (Braunjura) zeta

    Literature: Dietl, G. (2010): Die Wutach-Formation (clw) des südwestdeutschen Juras - Beschreibung und Gliederung. Jh. Ges. Naturkde. Württemberg. 166. S.5-21




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