Traits taxon details
original description
Hall, J.; Clarke, J. M. (1893). An introduction to the study of the Genera of Palaeozoic Brachiopoda. II. Brachiopoda Articulata (continued). <em>New York Geological Survey, Palaeontology.</em> 8(2): 1-317. [details]
additional source
Girty, G. H. (1909 ["1908"]). The Guadalupian fauna. <em>United States Geological Survey Professional Paper.</em> 58: 1-651., available online at https://pubs.usgs.gov/pp/0058/report.pdf [details] 
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