Taxon - Odkazy a literatura
Frost D. R.: Amphibian Species of the World [https://amphibiansoftheworld.amnh.org/], American Museum of Natural History, New York, USA [jako Scaphiopus Holbrook, 1836]Datum citace: 22. leden 2011
The Interim Register of Marine and Nonmarine Genera [1292112]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Scaphiopus Holbrook, 1835]
Datum citace: 8. prosinec 2019
Paleobiology Database [99684]
Paleobiology Database [https://paleobiodb.org/] [jako Scaphiopus Holbrook, 1836]
Datum citace: 13. prosinec 2015