Počet záznamů: 1

Amphitheca isaacsonii gen. et sp. nov. (Acritarcha) from the Ananea Formation (Silurian/Devonian transition), southern Peru

  1. 1.
    0348547 - GLU-S 2011 RIV CZ eng J - Článek v odborném periodiku
    Vavrdová, Milada - Svobodová, Marcela
    Amphitheca isaacsonii gen. et sp. nov. (Acritarcha) from the Ananea Formation (Silurian/Devonian transition), southern Peru.
    Journal of the National Museum. Roč. 179, - (2010), s. 189-196 ISSN 1802-6842
    Výzkumný záměr: CEZ:AV0Z30130516
    Klíčová slova: Ananea Formation * Amphitheca gen. nov. * acritarchs * southern Peru
    Kód oboru RIV: DB - Geologie a mineralogie
    http://www.nm.cz/publikace/publikace-download.php?name=File1&dir=archiv&table=tabPublikaceArchiv&id=2795

    The new acritarch genus and species Amphitheca isaacsonii gen. et sp. n. was described from pelitic layers of latest Silurian-earliest Devonian age in southern Peru. Specimens are characterized by large number of radial projections. Processes are heteromorphic, irregular – apical conical, tubular and thin bi- or trifurcate. Morphological features of this genus resemble fossil hypnozygotes of dinoflagellate cysts. Overall, 40 genera and 74 species of organic-walled microfossils were found in surface samples of dark grey silty shales and sandy micaceous claystones from the San Gabán and Ananea Formation (southern Peru).
    Trvalý link: http://hdl.handle.net/11104/0189062