Variability of fluvial architecture in a poorly vegetated Earth: Silurian sheet‐braided and meandering ancestor river deposits recorded in northeastern Brazil - Janikian, Liliane; Almeida, Renato Paes de; Galeazzi, Cristiano Padalino; Tamura, Larissa Natsumi; Ardito, Julio César; Chamani, Marlei A. C (Terra Nova, 2019)