Record details

Title
    Trace fossils from the Letná Formation (Ordovician, Czech Republic)
Statement of responsibility
    Radek Mikuláš
Other titles
    Ichnofosilie letenského souvrství (ordovik, Česká republika)
Author
    Mikuláš, Radek
Language
    anglicky
Source title - serial
    Sborník geologických věd. Paleontologie
Vol./nr.
    Vol. 34
Pages
    p. 5-25
Year
    1998
Notes
    5 obr., 24 pl., 3 s.bibl. + 24 příl.
    České resumé
    Zkr. název ser.: Sbor. geol. Věd, Paleont.
Subject group
    Barrandien
    bioturbace
    ichnofosilie
    ordovik-svrchní
    popis taxonů
    pražská pánev
    sedimentologie
Geographical name
    Beroun
    ČR-Čechy
    Hatě (Beroun)
    Loděnice (Beroun)
    Praha
    Zdice (Beroun)
Keyword
    Czech
    Formation
    Fossils
    Letná
    Ordovician
    Republic
    Trace
Abstract (in english)
   The Upper part of the Letná Formation (Ordovician, middle part of the Beroun Stage in the Prague Basin, Barrandian area) yielded very rich trace fossil assemblages. Their occurrence is limited roughly to the uppermost 100m of the formation in the central part of basin. The ichnoassemblages (composed of Rusophycus, Cruziana, Planolites, Palaeophycus, Rhizocorallium, Dydymaulichnus, Teichichnus, Curvolithus, a.o.) correspond to the Cruziana Ichnofacies. Massive, almost ubiquitous, taxonomically indeterminable bioturbation (e.g., bulge-like structures) are characteristic. This assemblage demonstrates a wide range of benthic organisms including trilobites. Different ichnoassemblages have been obtained from the lower part of the formation. Indeterminable bioturbation is usually weak.
   The ichnoassemblage (Chondrites, Phycodes, Planolites, Megagrapton, Teichichnus, Protopaleodictyon, Diplocraterion) is less diverse and does not contain any ichnotaxa whose presumed tracemarkers belong to "shelly fauna". 57 ichnospecies are described in the systematic part; Sinophycos sol ichnosp. nov. is established as new
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    28. 3. 2008
Import date
    8. 8. 2012