Podrobnosti záznamu

Název
    Remarks on the type locality and current status of the foraminiferal species Rzehakina epigona (Rzehak, 1895)
Autor
    Bubík, Miroslav
    Kaminski, M.
Jazyk
    anglicky
Typ dokumentu
    článek ve sborníku
Zdrojový dokument - monografie
    Proceedings of the Fifth International Workshop on Agglutinated Foraminifera
Klíčové slovo
    1895
    Current
    Epigona
    Foraminiferal
    Locality
    Remarks
    Rzehak
    Rzehakina
    Species
    Status
    Type
Abstrakt (anglicky)
   A topotype locality is proposed for Rzehakina epigona. As the type specimen of Silicina epigona Rzehak, 1895 is assumed to be lost, we undertook a search for new material in the type area, Zdounky village in Moravia. The greenish grey marly clays of the Abathomphalus mayaroensis Zone provided 138 Rzehakina specimens. In addition to R. epigona, rare specimens of R. inclusa, R. lata, R. minima and even a typical R. fissistomata were present. Biometrical analysis was carried out on 52 complete specimens using the involution value Z and the length/breadth ratio. The Z value measured from Rzehak's type figure is significantly higher and outside the range of variability of cluster of measured R. epigona specimens. Relatively poor preservation of topotypes makes impossible proper revision of the species Rzehakina epigona at this time.
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
    R
Datum importu
    15. 10. 2014