Taxon - Links and literature
Paleobiology Database [85327]
Paleobiology Database [https://paleobiodb.org/] [as Ptyocephalus Agassiz, 1843]
Data retrieved on: 30 January 2016
The Interim Register of Marine and Nonmarine Genera [1339859]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Ptyocephalus Whittington, 1948]
Data retrieved on: 29 November 2019
The Interim Register of Marine and Nonmarine Genera [1401893]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Kirkella Kobayashi, 1942]
Data retrieved on: 8 December 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. [as Ptyocephalus WHITTINGTON, 1948]Data retrieved on: 11 October 2011