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  • Perca fossilis GAUDANT, 1997


    Images:

    oilshale

    Taxonomy

    Perch

    Kingdom: Animalia
    Phylum: Chordata
    Class: Actinopteri Cope 1871
    Order: Perciformes Stirton 1953
    Family: Percidae Cuvier 1816
    Genus: Perca
    Species: Perca fossilis
    Author Citation GAUDANT, 1997

    Geological Time Scale

    Eon: Phanerozoic
    Era: Cenozoic
    Period: Neogene
    Sub Period: None
    Epoch: Pliocene
    International Age: Piacenzian

    Stratigraphy

    Willershausen Formation

    Provenance

    Collector: T. Bastelberger
    Date Collected: 06/01/1969
    Acquired by: Field Collection

    Dimensions

    Length: 21 cm

    Location

    Clay pit Willershausen
    Willershausen a. Harz
    Lower Saxony
    Germany

    Comments

    Taxonomy from Fossilworks.org.

    Diagnosis from Gaudant 1997, p. 23 (translated from french by oilshale):"Perches that differ from the present species Perca fluviatilis L. by
    their sagitta possessing a relatively massive rostrum with a rounded anterior end, by the composition of the posterior dorsal fin which has 11 to 13 lepidotriches, whereas Perca fluviatilis L. generally has 13 to 16, and finally by the smaller size of their scales, the number of which can be estimated at about 65 to 80 along the lateral line, whereas it is 60 to 70 in Perca fluviatilis L."

    Identified by oilshale using Gaudant 1997.

    References:

    Weiler, W. (1933) Die Fischreste aus dem Oberpliocän von Willershausen. Arch. Hydrobiol. 25. p. 291-304.

    Gaudant, Jean (1997): L'ichthyofaune pliocène de Willershausen am Harz (Basse Saxe, Allemagne) – un réexamen. Stuttgarter Beiträge zur Naturkunde / B; 1997, 51 p.10 pl., 24 fig.




    User Feedback


    Very nice.  I don't think ive ever seen a fossil perch before?  

     

    RB

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    1 hour ago, RJB said:

    Very nice.  I don't think ive ever seen a fossil perch before?  

     

    RB

     

    Thanks RB,

    I don't even know any Miocene / Pliocene  location in the US where you can find fluvial fl or lacustrine deposits.

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