Taxon - Odkazy a literatura
Paleobiology Database [136815]
Paleobiology Database [https://paleobiodb.org/] [jako Planocardia Grimm, 1998]
Datum citace: 11. prosinec 2015
The Interim Register of Marine and Nonmarine Genera [1437065]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Planocardia Grimm, 1998]
Datum citace: 29. listopad 2019