Record details

Title
    Silicified sea life - Macrofauna and palaeoecology of the Neuburg Kieselerde Member (Cenomanian to Lower Turonian Wellheim Formation, Bavaria, southern Germany)
Author
    Jäger, M.
    Kroh, A.
    Mitterer, A.
    Niebuhr, B.
    Schneider, S.
    Vodrážka, Radek
    Wilmsen, M.
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Acta Geologica Polonica
Vol./nr.
    Roč. 63, č. 4
Pages
    s. 555-610
Year
    2013
Notes
    Rozsah: 56 s. : P
Subject category
    Danubian Cretaceous Group
    Facies Silica diagenesis
    Late Cretaceous
    Macro-invertebrates
    stratigraphy
Keyword
    Bavaria
    Cenomanian
    Formation
    Germany
    Kieselerde
    Life
    Lower
    Macrofauna
    Member
    Neuburg
    Palaeoecology
    Sea
    Silicified
    Southern
    Turonian
    Wellheim
Abstract (in english)
   With approximately 100 species, the invertebrate macrofauna of the Neuburg Kieselerde Member of the Wellheim Formation (Bavaria, southern Germany) is probably the most diverse fossil assemblage of the Danubian Cretaceous Group. Occurring as erosional relicts in post-depositional kart depressions, both the Cretaceous sediments and fossils have been silicified during diagenesis. The Neuburg Kieselerde Member, safely dated as Early Cenomanian to Early Turonian based on inoceramid bivalve biostratigraphy and sequence stratigraphy preserves a predominantly soft-bottom community, which, however, is biased due to near-complete early diagenetic loss of aragonitic shells. The community is dominated by epifaunal and semi-infaunal bivalves as well as sponges that settled on various (bio-) clasts, and may widely be split into an early bivalve-echinoid assemblage and a succeeding sponge-brachiopod assemblage.
   in addition to these groups we document ichnofauna, polychaete tubes, nautilids and bryozoans. The fauna provides evidence of a shallow to moderately-deep, calm, fully marine environment, which is intemreted as a large-scale mbayftient herein. The fauna of the Neuburg Kieselerde Member is regarded as an important archive of lower Upper Cretaceous sea-life in the surroundings of the Mid-European Island.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    23. 10. 2014