Podrobnosti záznamu

Název
    The aquatic plants Salvinia (Salviniales) and Limnobiophyllum (Arales) from the Late Miocene flora of Sosnica (Poland)
Údaj o odpovědnosti
    Margaret Collinson, Zlatko Kvaček, Ewa Zastawniak
Autor
    Collinson, Margaret
    Kvaček, Zlatko, 1937-
    Zastawniak, Ewa
Jazyk
    anglicky
Zdrojový dokument - seriál
    Acta palaeobotanica
Svazek/č.
    Vol. 41, no. 2
Strany
    p. 253-282
Rok
    2001
Poznámky
    2 obr., 8 fot., 2 tab., 5 s.bibl.
    il.
    Zkr. název ser.: Acta palaeobot. (Kraków)
Předmětová skupina
    komunita
    listy
    Magnoliidae
    megaspory
    miocén-svrchní
    popis taxonů
    Pteridophyta
    rašeliniště
    terciér
    ultrastruktura biologická
Geografické jméno
    Bílina (Teplice)
    ČR-Čechy
    Polsko - jihozápad
    Rakousko
    Rusko
    SRN
    Ukrajina
Klíčové slovo
    Aquatic
    Arales
    Flora
    Late
    Limnobiophyllum
    Miocene
    Plants
    Poland
    Salvinia
    Salviniales
    Sosnica
Abstrakt (anglicky)
   Fossil free-floating aquatic plants of salvinia mildeana Goeppert (a water fern of the Salviniales) and Limnobiophyllum expansum (Heer) Kvaček (Arales) are described from the Late Miocene of Sosnica, Poland. The S. mildeana vegetative remains are associated with dispersed megaspores here determined as the S. intermedia Dorofeev complex. characteristics of other megaspores of this complex are summarised based on translations of Russian, Ukrainian and German literature. Other megaspores assigned to the section Salvinia sensu Dorofeev (with elongate ellipsoidal shape and conical to pyramidal apices) are briefly discussed. Megaspores of S. intermedia complex from Sosnica are compared and contrasted with those of S. cerebrata Dorofeev ex Nikitin using SEM and TEM. S. cerebrata was assigned to a different section (Cerebrata) by Dorofeev and it occurs in situ in plants of salvinia reussii Ettingshausen from the Early Miocene of Bílina, Czech Republic.
   The megaspores differs in shape, ornament, surface structures and perine ultrastructure and the potential systematic values of these characteristics is emphasised. Spores linked with vegetative in reconstructed fossil plants provide an indication of the former biodiversiy and variability of Salvinia. the extinct species S. reussii and S. mildeana both possess the submerged system (=dissected leaf) bearing in part root-like and inflated segments, the latter characteristic no longer represented in the modern genus. The whole fossil plants show the existence of extinct species of Salvinia and the extinct genus Limnobiophyllum in aquatic vegetation as recently as the Late Miocene in Europe. Associated plant assemblages at Sosnica are briefly reviewed and the palaeoecology of Salvinia and limnobiophyllum in ancient wwetland floras is discussed
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    28. 3. 2008
Datum importu
    8. 8. 2012