Taxon - Odkazy a literatura
Lemke U. (2019): Catalogue of the available names and non available names of the species and subspecies for the class Trilobita [jako Cyphaspides (Protocyphaspides) cerberus (Barrande 1846)]Datum citace: 28. únor 2020
Lemke U. (2019): Catalogue of the available names and non available names of the species and subspecies for the class Trilobita [jako Cyphaspides novaki Prantl & Pribyl 1950]Datum citace: 28. únor 2020
Vaněk J., Valíček J. (2002): New index of the genera, subgenera and species of Barrandian trilobites. Part C-D (Silurian and Devonian) ver. 2013/09, Paleontologia Bohemiae vol. VIII, Praha [jako Cyphaspides cerberus (Barrande, 1846)]