Taxon - Odkazy a literatura
Paleobiology Database [28819]
Paleobiology Database [https://paleobiodb.org/] [jako Properotundirostrum Sartenaer, 1986]
Datum citace: 27. leden 2016
The Interim Register of Marine and Nonmarine Genera [1204098]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Properotundirostrum Sartenaer, 1986]
Datum citace: 30. listopad 2019