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Gérard-Paul Deshayes
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Gérard-Paul Deshayes

French geologist
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Learn about this topic in these articles:

  • Grand Canyon rock layering
    geochronology
    / Early attempts at mapping and correlation

    Further work by Lyell and Gérard-Paul Deshayes resulted in the term Tertiary being accepted as one of the fundamental divisions of geologic time.

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    Further work by Lyell and Gérard-Paul Deshayes resulted in the term Tertiary being accepted as one of the fundamental divisions of geologic time.

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  • Messinian Stage
    Tertiary Period
    / Establishing Tertiary boundaries

    …by Lyell’s colleague and friend Gérard-Paul Deshayes, a French geologist who had amassed a collection of more than 40,000 mollusks and was preparing a monograph on the mollusks of the Paris Basin.

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    …by Lyell’s colleague and friend Gérard-Paul Deshayes, a French geologist who had amassed a collection of more than 40,000 mollusks and was preparing a monograph on the mollusks of the Paris Basin.

    Read More