Devonian fishes of Iowa Eastman, Charles Rochester, 1868-1918 creator Iowa Geological Survey. contributor text book Des Moines Iowa Geological Survey 1908 1908
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ENG "From Iowa geological survey, vol. XVIII, Annual report, 1907." Devonian Fishes, Fossil Iowa Paleontology QE851 .E13d 1908 https://www.biodiversitylibrary.org/bibliography/61868 20191865 10.5962/bhl.title.61868 BKL