Resumen
ABSTRACT. A new species of fossil fish, Percichthys sylviae (Perciformes, Percichthyidae), collected in a continental sedimentary sequence, located in the upper course of the Queuco river (37°44'S; 71°24'W), South-Central Andes of Chile assigned to the Miocene, is proposed. This record increases to five the number of fossil percichthyid species.