NASCIMENTO, S., SMANIOTTO, L.P., SOUZA, P.A., LEMOS, V.B. e SCOMAZZON, A.K. 2009. Biochronostratigraphy (conodonts and palynology) from a selected strata of the Itaituba Formation (Pennsylvanian of the Amazonas Basin) at Itaituba, Pará State, Brazil. Pesquisas em Geociências. 36, 1 (maio 2009), 37–47. DOI:https://doi.org/10.22456/1807-9806.17873.