Eugene Stanley Richardson

Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois. Trilobitomorpha Arthropleurida - Primary Source Edition

Eugene Stanley Richardson

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Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Essex Fauna and Medusae

Eugene Stanley Richardson

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Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Morphology and Affinities of Tullimonstrum

Eugene Stanley Richardson

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New Agnathous Fishes From the Pennsylvanian of Illinois: Fieldiana, Geology, Vol.33, No.26

Eugene Stanley Richardson

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Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Essex Fauna and Medusae: Fieldiana, Geology, Vol.12, No.7

Eugene Stanley Richardson

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Pennsylvanian invertebrates of the Mazon Creek area, Illinois - Primary Source Edition

Eugene Stanley Richardson

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Pennsylvanian invertebrates of the Mazon Creek area, Illinois. Insects

Eugene Stanley Richardson

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