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- ...is ''Lotagnostus trisectus'', which was originally described as a species of ''[[Agnostus]]'' by Salter in 1864.<ref>[http://www.trilobites.info/generic ...h America: systematics and biostratigraphic significance|journal= Bulletin of Geosciences|volume= 86|issue= 3|pages= 569–594|url= http://www.geology.cz9 KB (1,244 words) - 15:44, 27 April 2025