Taxon - Odkazy a literatura
Australian Faunal Directory [46675289-f407-4308-a21d-b33a3f9a4cb5]
ABRS (2009-2019): Australian Faunal Directory [https://biodiversity.org.au/afd/home], Australian Biological Resources Study, Canberra [jako Bulla Linnaeus, 1758]
Datum citace: 21. červenec 2015
The Interim Register of Marine and Nonmarine Genera [1285565]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Bulla Linnaeus, 1758]
Datum citace: 30. listopad 2019
Paleobiology Database [109328]
Paleobiology Database [https://paleobiodb.org/] [jako Bulla Linnaeus, 1758]
Datum citace: 11. prosinec 2015
Paleobiology Database [98733]
Paleobiology Database [https://paleobiodb.org/] [jako Bullaria Rafinesque, 1815]
Datum citace: 27. leden 2016
The Interim Register of Marine and Nonmarine Genera [1417567]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Bullus de Montfort, 1810]
Datum citace: 4. duben 2020