When1: 1818
Who: Étienne Geoffroy Saint-Hilaire [Saint-Hilaire, Étienne Geoffroy]
What: biologist
Where: Paris, France
works\ Anatomical Philosophy [1818]
Detail: He lived 1772 to 1844 and studied fossils and compared fish and land animals, vertebrates and insects, and cephalopods and vertebrates. Fossils have structure homologies {unity of type}. Body type depends on vertebral structure.
Biological Sciences>Biology>History>Evolution
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Date Modified: 2022.0224