Taxon - Odkazy a literatura
Paleobiology Database [18661]
Paleobiology Database [https://paleobiodb.org/] [jako Retha]
Datum citace: 30. leden 2016
The Interim Register of Marine and Nonmarine Genera [1333131]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Retha Cox, 1965]
Datum citace: 29. listopad 2019