Traits taxon details
original description
Johnson, J. G.; Boucot, A. J.; Murphy, M. A. (1973). Pridolian and early Gedinnian brachiopods from the Roberts Mountains Formation of central Nevada. <em>University of California Publications in Geological Sciences.</em> 100: 1-75, 31 plates. [details]
basis of record
Johnson, J. G. (1973). Mid-Lochkovian Brachiopods from the Windmill Limestone of Central Nevada. <em>Journal of Paleontology.</em> 47(6): 1013-1030. [details] Available for editors 
additional source
Smith, R. E. (1980). Lower Devonian (Lochkovian) biostratigraphy and brachiopod faunas, Canadian Arctic Islands. <em>Geological Survey of Canada, Bulletin.</em> 308: 1-155. [details] Available for editors 
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