Taxon - Odkazy a literatura
Paleobiology Database [198453]
Paleobiology Database [https://paleobiodb.org/] [jako Machairagnostus tmetus Harrington & Leanza, 1957]
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 Pseudorhaptagnostus (Machairagnostus) tmetus (Harrington & Leanza 1957)]Datum citace: 3. březen 2020
E. B. Naimark (2016): Revision of Pseudorhaptagnostus Lermontova (?Trilobita, Agnostida), Paleontological Journal, 50(1), 54-68 [jako Machairagnostus tmetus Harrington et Leanza, 1957]