Late Devonian and Carboniferous acritarch stratigraphy and paleogeography

Detailed analysis of literature on late Devonian and Carboniferous acritarchs learns that, up to now, late Devonian acritarch zonation has been proposed only for Algeria, U.S.A. and Belgium. These zonations comprise only part of the Upper Devonian sequence in U.S.A. and Belgium, whereas the complete Upper Devonian acritarch zonation for Algeria is not matched by a detailed chronostratigraphic subdivision for that last area. Upper Devonian and Carboniferous acritarchs have also been described from many other areas in North and South America, Africa, Europe, Asia and Australia, but the data are... Mehr ...