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  • Turbomesodon relegans Poyato-Ariza & Wenz, 2004


    Images:

    oilshale

    Taxonomy

    Kingdom: Animalia
    Phylum: Chordata Haeckel 1874
    Class: Actinopteri Cope 1871
    Order: Pycnodontiformes Berg 1937
    Family: Pycnodontidae Agassiz 1833
    Genus: Turbomesodon
    Species: Turbomesodon relegans
    Author Citation Poyato-Ariza & Wenz, 2004

    Geological Time Scale

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

    Stratigraphy

    Solnhofen Formation

    Biostratigraphy

    Hybonotum Zone
    Riedense Subzone

    Provenance

    Acquired by: Purchase/Trade

    Location

    Eichstätt
    Bavaria
    Germany

    Comments

    Taxonomy from Fossilworks.com.

    Diagnosis from Poyato-Ariza & Wenz 2004, p. 370: "Turbomesodon presenting the following unique combination of primitive and derived characters: dorsal apex at the point of insertion of the dorsal fin; ventral apex absent; coronoid process high, with straight dorsal border; about 32 vertebrae (epichordal elements excluding those of the caudal endoskeleton); first one or two dorsal axonosts not supporting fin rays (one or two free dorsal axonosts present); about 39 dorsal and 30 anal axonosts; caudal fin double emarginated; dorsal and anal fins sigmoid in contour, placed at 60-69 % of standard length; pelvic fins at 45-55 % of standard length; some anterior dorsal ridge scales eventually separated from each other; 17-20 ventral keel scales; 6 postcloacal ventral keel scales; up to 5 spines on contour scales; spines on each ventral keel scale in contact with each other; supracloacal scale ventrally in contact with cloacal scales only"

    References:

    Poyato-Ariza, F. & Wenz, S.(2004): The new pycnodontid fish genus Turbomesodon, and a revision of Macromesodon based on new material from the Lower Cretaceous of Las Hoyas, Cuenca, Spain. Mesozoic Fishes 3 - Systematics, Paleoenvironments and Biodiversity, G. Arratia & A. Tintori (eds.): pp. 341-378,15 figs., 1 tab., 3 apps.

    Ebert M, Kölbl-Ebert M, Lane JA (2015) Fauna and Predator-Prey Relationships of Ettling, an Actinopterygian Fish-Dominated Konservat-Lagerstätte from the Late Jurassic of Southern Germany. PLoS ONE 10(1): e0116140. doi:10.1371/ journal.pone.0116140

     




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