New palynostratigraphic data of the Irati (Assistência Member) and the Corumbataí formations, Paraná Basin, Brazil, and correlation with other south American basins - Rocha, Haline V.; Mendes, Márcia; Pereira, Zélia; Rodrigues, Cristina Fernanda Alves; Fernandes, Paulo; Lopes, Gilda; Sant'anna, Lucy Gomes; Tassinari, Colombo Celso Gaeta; Sousa, Manuel João Lemos de (Journal of South American Earth Sciences, 2020)