Taxon - Odkazy a literatura
druh
Pitar simpsoni W. H. Dall, 1889
Paleobiology Database [146434]
Paleobiology Database [https://paleobiodb.org/] [jako Pitar simpsoni (Dall, 1895)]
Datum citace: 11. prosinec 2015
Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [jako Pitar simpsoni (Dall, 1895)]Datum citace: 23. listopad 2013