Profil taxonu
Odkazy a literatura
Paleobiology Database [211579]
Paleobiology Database [https://paleobiodb.org/] [jako Permagrion Tillyard, 1928]
Datum citace: 11. prosinec 2015
The Interim Register of Marine and Nonmarine Genera [1255208]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Permagrion Tillyard, 1928]
Datum citace: 29. listopad 2019