White, C..A. & St. John, O.H. (1867). Descriptions of new Subcarboniferous and Coal Measure fossils, collected upon the Geological Survey of Iowa, together with a notice of new generic characters observed in two species of brachiopods. Transactions of the Chicago Academy of Sciences. 1(1): 115-127.
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White, C..A. & St. John, O.H.
1867
Descriptions of new Subcarboniferous and Coal Measure fossils, collected upon the Geological Survey of Iowa, together with a notice of new generic characters observed in two species of brachiopods.