Agglutinated foraminifera from Llanvirnian graptolite black shales of Plettenberg in the Sauerland
Riegraf, W.; Niemeyer, J.
Paläontologische Zeitschrift 70(1-2): 19-36
1996
ISSN/ISBN: 0031-0220 Accession: 029940364
The Plettenberger Banderschiefer (Ordovician, Lower Llanvirnian, Zone of Didymograptus bifidus HALL) from the type locality at Plettenberg (Sauerland, NW-Germany) yielded a foraminiferal fauna consisting of primitive agglutinated species (Amphitremoida, Bathysiphon, ?Raibosammina, ?Thekammina, Thurammina). Forming one of the stratigraphically oldest European foraminiferal assemblages, these taxa were washed out of an unconsolidated graptolite siltstone and represent a pelagic, oxygen-depleted environment.