Taxon - Odkazy a literatura
Parapholas Conrad, 1848
The Interim Register of Marine and Nonmarine Genera [1379227]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Parapholas Conrad, 1848]
Datum citace: 30. listopad 2019
Paleobiology Database [18485]
Paleobiology Database [https://paleobiodb.org/] [jako Parapholas Conrad, 1848]
Datum citace: 13. prosinec 2015
Parapholas californica T. A. Conrad, 1837 Paleobiology Database [98005]
Paleobiology Database [https://paleobiodb.org/] [jako Parapholas californica (Conrad, 1837)]
Datum citace: 28. leden 2018
Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [jako Parapholas californica Conrad, 1837]Datum citace: 23. listopad 2013
Parapholas calva Sowerby, 1834 - skulař lebkovitý Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [jako Parapholas calva Sowerby, 1834]Datum citace: 23. listopad 2013
Pfleger V. (1999): České názvy živočichů III. Měkkýši (Mollusca), Národní muzeum, (zoologické odd.), Praha, 108 pp. [jako Parapholas calva (SOWERBY, 1834)]Datum citace: 11. listopad 2013
Parapholas quadrizonata Spengler, 1797 Paleobiology Database [61608]
Paleobiology Database [https://paleobiodb.org/] [jako Parapholas quadrizonata]
Datum citace: 11. prosinec 2015
Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [jako Parapholas quadrizonata Spengler, 1797]Datum citace: 23. listopad 2013
Parapholas acuminata Sowerby, 1834 Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [jako Parapholas acuminata Sowerby, 1834]Datum citace: 23. listopad 2013
Parapholas branchiata (A.A. Gould, 1845) Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [jako Parapholas branchiata (Gould, 1845)]Datum citace: 22. listopad 2013