Taxon - Odkazy a literatura
Paleobiology Database [21598]
Paleobiology Database [https://paleobiodb.org/] [jako Heliopyge Haas & Mensink, 1970]
Datum citace: 11. prosinec 2015
Paleobiology Database [21435]
Paleobiology Database [https://paleobiodb.org/] [jako Alcaldops Arbizu, 1979]
Datum citace: 27. leden 2016
The Interim Register of Marine and Nonmarine Genera [1380105]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Heliopyge Haas & Mensink, 1970]
Datum citace: 30. listopad 2019
The Interim Register of Marine and Nonmarine Genera [1096988]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Alcaldops Arbizu, 1979]
Datum citace: 8. prosinec 2019
Jell P. A., Adrain J. M. (2002): Available generic names for trilobites, Memoirs of the Queensland Museum 48(2): 331-553. Brisbane. ISSN0079-8835. [jako Heliopyge HAAS & MENSINK, 1970]Datum citace: 11. říjen 2011