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Iowa City: University of Iowa, 1937
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Society of Economic Paleontologists and Mineralogists and the Paleontological Society, 1973
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Society of Economic Paleontologists and Mineralogists and the Paleontological Society, 1967
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Society of Economic Paleontologists and Mineralogists and the Paleontological Society, 1941
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Society of Economic Paleontologists and Mineralogists and the Paleontological Society, 1953
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Society of Economic Paleontologists and Mineralogists and the Paleontological Society, 1941