Taxon - Odkazy a literatura
Paleobiology Database [19307]
Paleobiology Database [https://paleobiodb.org/] [jako Quadragnostus Howell, 1966]
Datum citace: 30. leden 2016
The Interim Register of Marine and Nonmarine Genera [1044575]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Quadragnostus Howell, 1966]
Datum citace: 23. leden 2020