Charles Lyell Quote

Variation and natural selection would also afford a key to a multitude of geological facts otherwise wholly unaccounted for, as, for example, why there is generally an intimate connection between the living animals and plants of each great division of the globe and the extinct fauna and flora of the post-tertiary or tertiary formations of the same region...

Ch.21, p. 414 - The Geological Evidences of the Antiquity of Man (1863)