Hall, J.; Clarke, J. M. (1893). An introduction to the study of the Genera of Palaeozoic Brachiopoda. II. Brachiopoda Articulata (continued). New York Geological Survey, Palaeontology. 8(2): 1-317.
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Hall, J.; Clarke, J. M.
1893
An introduction to the study of the Genera of Palaeozoic Brachiopoda. II. Brachiopoda Articulata (continued)