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This brief article is currently based on the outdated taxonomic insights that were expressed in Palmer, A.R. and L.N. Repina (1993). "Through a Glass Darkly: Taxonomy, Phylogeny and Biostratigraphy of the Olenellina". The University of Kansas Paleontological Contributions 3: 1–35, that were followed in the update of the Treatise. More recent insights can be found in Lieberman, B.S. (1999). "Systematic Revision of the Olenelloidea (Trilobita, Cambrian)". Bulletin of the Peabody Museum of Natural History 45. 193.176.225.6 (talk) 09:55, 23 May 2012 (UTC)[reply]