Hall, J. (1867). Descriptions and figures of fossil Brachiopoda of the Upper Helderburg, Hamilton, Portage and Chemung Groups. Natural History of New York, Palaeontology. 4(1): 428 pp. Geological Survey of New York, Albany.
481489
Hall, J.
1867
Descriptions and figures of fossil Brachiopoda of the Upper Helderburg, Hamilton, Portage and Chemung Groups
Natural History of New York, Palaeontology
4(1): 428 pp. Geological Survey of New York, Albany