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Nicolaus Steno
AD 1631 – AD 1686
Georges Buffon
AD 1707 – AD 1788
James Hutton
AD 1726 – AD 1787
Abraham Gottlob Werner
AD 1749 – AD 1817
William Smith
AD 1769 – AD 1839
Georges Cuvier
AD 1769 – AD 1832
Charles Lyell
AD 1797 – AD 1875
Louis Agassiz
AD 1807 – AD 1873