title: Taxonomic and stratigraphic revision of Lower Cretaceous cicatricose spores from Patagonia. 1. Genera Appendicisporites Weyland &amp; Krieger, Nodosisporites Deák and Plicatella Maljavkina
abstract: Taxonomic and stratigraphic revision of Lower Cretaceous cicatricose spores from Patagonia. 1. Genera Appendicisporites Weyland &amp; Krieger, Nodosisporites Deák and Plicatella Maljavkina. Lower Cretaceous sediments found in different localities of the Austral Basin in Patagonia, contain several cicatricose fern spore types belonging to the family Anemiaceae. This initial contribution is a taxonomic study of 13 species referred to the genera Appendicisporites Weyland &amp; Krieger, Nodosisporit
journal: Revista del Museo Argentino de Ciencias Naturales