Traits taxon details
original description
Weller, S. (1914). The Mississippian Brachiopoda of the Mississippi Valley Basin. <em>Monograph of the State Geological Survey of lllinois.</em> 1: 1-508. [details]
additional source
Muir-Wood, H.; Cooper, G. A. (1960). Morphology, classification and life habits of the Productoidea (Brachiopoda). <em>Geological Society of America Memoir.</em> 81: 1-447. [details]
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