Traits taxon details
original description
Poretskaya, E. S. 1968a. Polyplacidia artenica-a New Genus ans species of Sea Urchin from South Western Armenia.Ezhegodnik. Vsesouznoe Paleontologicheskoe Obschchestvo 18, 286-297. [details]
basis of record
Smith, A. B. & Kroh, A. (eds.). (2011). The Echinoid Directory. World Wide Web electronic publication., available online at http://www.nhm.ac.uk/research-curation/projects/echinoid-directory [details]
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