Taxon - Odkazy a literatura
Paleobiology Database [23503]
Paleobiology Database [https://paleobiodb.org/] [jako Pseudulrichia]
Datum citace: 30. leden 2016
Paleobiology Database [23053]
Paleobiology Database [https://paleobiodb.org/] [jako Bucerella]
Datum citace: 30. leden 2016
The Interim Register of Marine and Nonmarine Genera [1041241]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Pseudulrichia Schmidt, 1941]
Datum citace: 30. listopad 2019
The Interim Register of Marine and Nonmarine Genera [1284578]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Bucerella Neckaja, 1966]
Datum citace: 30. listopad 2019