Taxon - Links and literature
Lemke U. (2019): Catalogue of the available names and non available names of the species and subspecies for the class Trilobita [as Phaldagnostus obsurdus Ergaliev 1980]Data retrieved on: 3 March 2020
Paleobiology Database [241847]
Paleobiology Database [https://paleobiodb.org/] [as Phaldagnostus obsurdus Ergaliev, 1980]
Data retrieved on: 1 April 2020