Podrobnosti záznamu

Název
    Epibionts of mollusc shells from the Korycany limestones (Upper Cenomanian, Czech Republic)
Údaj o odpovědnosti
    Jiří Žítt, Marie Kopáčová, Čestmír Nekovařík
Autor
    Kopáčová, Marie
    Nekovařík, Čestmír
    Žítt, Jiří
Jazyk
    anglicky
Zdrojový dokument - seriál
    Bulletin of geosciences
Svazek/č.
    Vol. 78, no. 1
Strany
    p. 41-52
Rok
    2003
Poznámky
    9 obr., 5 fot., 24 bibl.
    il.
    Zkr. název ser.: Bull. Geosci.
Předmětová skupina
    Bivalvia
    cenoman
    česká křídová pánev
    epibiotismus
    Gastropoda
    křída-svrchní
    Mollusca
    otisk vnitřní
    schránky
    tafonomie
    vltavo-berounský faciální vývoj
Geografické jméno
    ČR-Čechy
    Korycany (Mělník)
Klíčové slovo
    Cenomanian
    Czech
    Epibionts
    Korycany
    Limestones
    Mollusc
    Republic
    Shells
    Upper
Abstrakt (anglicky)
   Abundant internal moulds of gastropod shells and imprints of bivalve shells were collected from the Korycany limestones (Korycany Member, Late Cenomanian) exposed in the gas-main excavations near Korycany in central Bohemia. The specimens are unique in that they comprise encrusters of inner shell surfaces, preserved after the shells were diagenetically dissolved or otherwise destructed. The preserved cemented component of an encrusting community consists of oysters, worms and bryozoans. In gastropods, predominantly apertural and adjacent parts of inner shell surfaces were colonized. Oysters, often in preferred orientations, prevail on inner surfaces of bivalve shells. A direction of coiling of oyster shells was proved to be a useful tool for a correct interpretation of the original position of encrusters on the host shells.
   Taphonomic and palaeobiological features of the encrusters indicate that the postmortem colonization of mollusc shells was only a short-lasting one, with possible slight environmental disturbances and episodic rapid burials. Later formation of gastropod moulds corresponded with shell dissolution and [Unification rates of the rock. In this connection, two extreme mould types were distinguished with a series of stages in epibiont preservation between them
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    31. 3. 2008
Datum importu
    8. 8. 2012