Traits taxon details
original description
Merriam, C. W. (1940). Devonian stratigraphy and paleontology of the Roberts Mountains Region, Nevada. <em>Geological Society of America Special Papers.</em> 25: 1-110. [details]
additional source
Johnson, J. G. (1975). Late Early Devonian brachiopods from the Disappointment Bay Formation, Lowther Island, Arctic Canada. <em>Journal of Paleontology.</em> 49(6): 947-978. note: Records material attributed to this species from the Canadian Arctic (fossil material on Lowther Island). [details] Available for editors 
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