Taxon - Odkazy a literatura
Paleobiology Database [35075]
Paleobiology Database [https://paleobiodb.org/] [jako Ptycholepis Agassiz, 1843]
Datum citace: 13. prosinec 2015
The Interim Register of Marine and Nonmarine Genera [1348577]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Ptycholepis Agassiz, 1832]
Datum citace: 21. leden 2020