Azpelicueta, Marķa de las Mercedes A southern species of the tropical catfish genus Phractocephalus (Teleostei: Siluriformes) in the Miocene of South America - Oxford Elsevier Science April 2016 - pp. 221-230 ilus. ISSN: 0895-9811 Subjects--Topical Terms: MIOCENOPISCESSILUROIDEATELEOSTEI Subjects--Geographic Terms: ARGENTINAENTRE RIOS Subjects--Index Terms: FORMACION ITUZAINGO