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  • Magila latimana Muenster 1839


    Images:

    oilshale

    Taxonomy

    Mud shrimp

    Kingdom: Animalia
    Phylum: Arthropoda Latreille 1829
    Class: Malacostraca Latreille 1802
    Order: Decapoda Latreille 1802
    Family: Axiidae Huxley 1879
    Genus: Magila
    Species: Magila latimana
    Author Citation Muenster 1839

    Geological Time Scale

    Eon: Phanerozoic
    Era: Mesozoic
    Period: Jurassic
    Sub Period: None
    Epoch: Late
    International Age: Tithonian

    Stratigraphy

    Weissjura Group
    Altmühltal Formation

    Biostratigraphy

    Hybonoticeras hybonotum Zone
    Lithacoceras riedense Subzone

    Provenance

    Acquired by: Purchase/Trade

    Dimensions

    Length: 3 cm

    Location

    Blumenberg
    Eichstätt District
    Bavaria
    Germany

    Comments

    Taxonomy from Fossilworks.org.
    The state of preservation of Magila is mostly poor, which becomes understandable when you consider that Magila was a burrowing crustacean living in the ground. Therefore, a more calcified carapace was not necessary. Only the exceptionally wide claws are mostly well preserved. These probably also served for digging.
    Diagnosis from Garassino & Schweigert 2006, p. 22: “Carapace cylindrical laterally flattened; deep cervical groove strongly directed forward; one or two carinae weak in antennal region; rostrum short and edentate; antennal spine well developed; pereiopods I-III chelate; pereiopod I larger and stronger than pereiopods II-III; pereiopods IV-V achelate; uropodal exopod with diaeresis.”
    Line drawing:

    986283798_Magilarekonstr.JPG.f168dd41e7d0fb42e60480b59b8ca156.JPG
    References:

    Garassino, Alessandro & Schweigert, Günter (2006). The Upper Jurassic Solnhofen decapod crustacean fauna review of the types from old descriptions Part I. Infraorders Astacidea, Thalassinidea, and Palinura. Memorie della Societa Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano, Volume XXXIV - Fascicolo I.
    Schweitzer, C. E., Feldmann, R. M., Garassino, A., Karasawa, H. and Schweigert, G. (2010). Systematic list of fossil decapod crustacean species. Crustaceana Monographs 10:1-222.



    User Feedback


    fifbrindacier

    Posted

    Nice spécimen.

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