Taxon - Odkazy a literatura
Ferraris C. J. (2007): Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types, Zootaxa 1418, 628 pp [jako Phractocephalus Spix & Agassiz, 1829]Datum citace: 13. červen 2013
The Interim Register of Marine and Nonmarine Genera [1302044]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Phractocephalus Agassiz in Spix & Agassiz, 1829]
Datum citace: 21. leden 2020
Paleobiology Database [251791]
Paleobiology Database [https://paleobiodb.org/] [jako Phractocephalus Spix & Agassiz, 1829]
Datum citace: 11. prosinec 2015
AQUATAB. World Wide Web electronic publication [genus/3482]
Plíštil J. (Ed.) (2001-2025): AQUATAB. World Wide Web electronic publication [http://aquatab.net] [jako Phractocephalus Agassiz, 1829]
Datum citace: 17. leden 2010