Fossils from pebbles in the Biskopåsen Formation in Southern Norway.
Abstract
Fossils are reported from pebbles in the lowest part of the Biskopåsen Conglomerate in the Late Precambrian Lillehammer Subgroup at the norhtern end of lake Mjøsa in Southern Norway. The most common and widespread fossils are \"Papillomembrana compta\" Spjeldnæs (1963), calcareous structures (pisolites and others), and cross sections of \"Sporomorphs\". The present material is not sufficient for biostratigraphical correlations. The geological development of the basin at this time is supposed to be due to epirogenic movements rather than to tectonics. The lithology of the pebbles in the conglomerate is highly variable, and some of them have passed through complicated and severe diagenetic changes.