Acritarchs of the Ediacaran Frecheirinha Formation, Ubajara Group, Northeastern Brazil

by Leticia Chiglino, Claudio Gaucher, Alcides N. Sial, Valderez P. Ferreira
Published 2015-06-01

Correlations of some Neoproterozoic carbonate-dominated successions in South America based on high-resolution chemostratigraphy

by Alcides Nobrega Sial, Claudio Gaucher, Aroldo Misi, Paulo Cesar Boggiani, Carlos José Souza de Alvarenga, Valderez Pinto Ferreira, Marcio Martins Pimentel, José Augusto Pedreira, Lucas Verissimo Warren, Rodrigo Fernández-Ramírez, Mauro Geraldes, Natan Silva Pereira, Leticia Chiglino, Wilker dos Santos Cezario