Taxon - Odkazy a literatura
Paleobiology Database [307963]
Paleobiology Database [https://paleobiodb.org/] [jako Prionocheilus narinosum (Siveter, 1976)]
Datum citace: 19. únor 2018
Lemke U. (2019): Catalogue of the available names and non available names of the species and subspecies for the class Trilobita [jako Prionocheilus narinosus (Siveter 1976)]Datum citace: 29. únor 2020
Paleobiology Database [307961]
Paleobiology Database [https://paleobiodb.org/] [jako Prionocheilus narinosus Siveter, 1977]
Datum citace: 29. únor 2020