Record details

    An mabundant, but enigmatic, organic mesofossil from the Upper Cretaceous of the Czech Republic
Statement of responsibility
    Margaret E. Collinson, Ervín Knobloch, Pim F. van Bergen, Anthony P.R. Brain
    Bergen, Pim F., van
    Brain, Anthony P. R.
    Collinson, Margaret E.
    Knobloch, Ervín, 1934-
Source title - serial
    Palaeontographica. Abteilung B, Paläophytologie
    Vol. 259, no. 1-6
    p. 15-31
    4 obr., 2 tab., 3 pl., 2 s.bibl.
    Zkr. název ser.: Palaeontographica
Subject group
    česká křídová pánev
    incertae sedis
    nový taxon
    organická substance
    prostředí sladkovodní
    taxon endemický
    ultrastruktura biologická
Geographical name
    Brníkov (Litoměřice)
    Březina (Svitavy)
    Březinka (Svitavy)
    Černčice (Louny)
    Černochov (Louny)
    Česká republika
    Hořešovice (Kladno)
    Kněževes (Praha-západ)
    Měcholupy (Louny)
    Semanín (Ústí nad Orlicí)
    Valchov (Blansko)
    Zbraslavec (Blansko)
    Zeměchy (Louny)
Abstract (in english)
   new organic mesofossil (maximum dimensi on close to 1 mm) is described and named as Zemechia Knobloch gen. nov. The mesofossil consists of two cuticle envelopes enclosing numerous, ruby red, solid spheres. The spheres are interpreted as secretion products and strongly resemle the gemmae on the surface of the megaspore Cabochonicus carbunculus. Zemechia occurs in numerous samples in more than 30 localities abundant (100 specimens per sample) but it is known only from the Peruc Member of the Cenomanian of Bohemian and Moravia (Czech Republic). Possible biological affinities of Zemechia are discussed taking into account the morphology, ultrastructure, chemical composition and associated biota. The affinities are most likely to be with higher plants but determination, even to Plylum, remains enigmatic. Even so, Zemechia is considered to be a biostratigraphical and palaeoecological marker, the occurrence of which is predicted in other sites of similar age and facies
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    19. 7. 2007
Import date
    8. 8. 2012