Now showing items 1-4 of 4
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Stumm, E. C.; Chilman, R. B. (Museum of Paleontology, The University of Michigan, 1967)
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Kesling, R. V.; Chilman, R. B. (Museum of Paleontology, The University of Michigan, 1987)
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Kesling, R. V.; Chilman, R. B. (Museum of Paleontology, The University of Michigan, 1978)
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Stumm, E. C.; Chilman, R. B. (Museum of Paleontology, The University of Michigan, 1969)