Original reference as:
- Stawikowski, Rainer & Uwe Werner. 2004. "Die Buntbarsche Amerikas. Band 3: Erdfresser, Hecht- und Kammbuntbarsche". Ulmer, Stuttgart. 1-478 (crc01348)
Conservation: Geophagus sp. 'rio são francisco' is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species.