Taxon - Odkazy a literatura
Paleobiology Database [26525]
Paleobiology Database [https://paleobiodb.org/] [jako Opisthotreta Palmer, 1954]
Datum citace: 27. leden 2016
The Interim Register of Marine and Nonmarine Genera [1072035]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Opisthotreta Palmer, 1954]
Datum citace: 30. listopad 2019