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 Homotelus pregradnicus Balashova 1959]Data retrieved on: 28 February 2020
Jan Ove R. Ebbestad & Richard A. Fortey (2019): Late Ordovician trilobites from the Taimyr Peninsula, Arctic Russia, Journal of Systematic Palaeontology, 18:1, 1-135 [as Isotelus pregradnicus (Balashova, 1959)]