Taxon - Odkazy a literatura
The Interim Register of Marine and Nonmarine Genera [1319195]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Pharella Gray, 1854]
Datum citace: 30. listopad 2019
Paleobiology Database [18061]
Paleobiology Database [https://paleobiodb.org/] [jako Pharella]
Datum citace: 11. prosinec 2015