Traits taxon details
original description
(of ) Sardeson F.W. (1892). The range and distribution of the Lower Silurian fauna of Minnesota with descriptions of some new species. <em>Minnesota Academy of Natural Science Bulletin.</em> 3: 326-343. [details]
basis of record
Amsden, T. W. (1974). Late Ordovician and early Silurian articulate brachiopods from Oklahoma, southwestern Illinois, and eastern Missouri. <em>Oklahoma Geological Survey Bulletin.</em> 119: 1-154. [details]
additional source
Ross, R. J. (1959). Brachiopod fauna of Saturday Mountain Formation, southern Lemhi Range, Idaho. <em>Geological Survey Professional Paper.</em> 294-L: 440-459, plates 54-56. [details]
new combination reference
Wang, Y. (1949). Maquoketa Brachiopoda of Iowa. <em>Geological Society of America Memoir.</em> 42: 55 pp. [details]
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