Taxon - Odkazy a literatura
Paleobiology Database [27042]
Paleobiology Database [https://paleobiodb.org/] [jako Visbyella]
Datum citace: 30. leden 2016
The Interim Register of Marine and Nonmarine Genera [1024669]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Visbyella Walmsley, Boucot, Harper & Savage, 1968]
Datum citace: 30. listopad 2019