1. Description of new characteristic taxa, Chapter 9, Conodonta;Alekseev,2001
2. The conodont Neognathodus bothrops Merrill, 1972 as the marker for the lower boundary of the Moscovian Stage (Middle Pennsylvanian);Alekseev,2013
3. Pennsylvanian foraminifera and biostratigraphy of the Amazonas and Solimões basins (north Brazil);Altiner;Revue de Paléobiologie,1995
4. Conodonts from the Itaituba Formation (Pennsylvanian) at well PEST-2-AM Amazon Basin;Araújo;Ciência e Cultura,1969
5. Family Cavusgnathidae;Austin,1981