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Étienne Geoffroy Saint-Hilaire. Étienne Geoffroy Saint-Hilaire (15 April 1772 – 19 June 1844) was a French naturalist who established the principle of "unity of composition". He was a colleague of Jean-Baptiste Lamarck and expanded and defended Lamarck's evolutionary theories. Geoffroy's scientific views had a transcendental flavor (unlike ...
Apr 11, 2024 · Étienne Geoffroy Saint-Hilaire (born April 15, 1772, Étampes, Fr.—died June 19, 1844, Paris) was a French naturalist who established the principle of “unity of composition,” postulating a single consistent structural plan basic to all animals as a major tenet of comparative anatomy, and who founded teratology, the study of animal malformation.
- The Editors of Encyclopaedia Britannica
Aug 5, 2013 · Learn about the life and work of Geoffroy, a pioneer of experimental embryology and evolutionary theory. He developed the concept of the unity of plan and challenged Cuvier's typology of animals.
Learn about the life and work of Étienne Geoffroy St. Hilaire, a pioneer of comparative anatomy and a proponent of the unity of type of vertebrates. Discover his debates with Cuvier, his influence on Darwin, and his legacy in biology.
Dec 1, 2021 · The contribution of Étienne Geoffroy Saint-Hilaire (1772–1844) to evolutionary biology is reviewed in commemoration of his 250th birthday. Geoffroy's views on saltational changes during embryogenesis of animals characterize him as a predecessor of the epigenetic concept of evolution, which is now developing in the frames of the extended evolutionary synthesis or evo-devo.
- Giuseppe Iurato, Abir U. Igamberdiev
- 2021
Bibliographie. Isidore Geoffroy Saint-Hilaire, son fils, Vie, travaux et doctrine scientifique d'Etienne Geoffroy Saint-Hilaire, (), lire en ligne sur Gallica. Pierre Flourens, Éloge historique d'Étienne Geoffroy Saint-Hilaire, lu dans la séance publique annuelle du 22 mars 1852, dans Mémoires de l'Académie des sciences de l'Institut de France, Gauthier-Villars, Paris, 1853, tome 23, p.
May 21, 2018 · Geoffroy Saint-Hilaire, Étienne. ( b. Etampes, France, 15 April 1772; d. Paris, France, 19 June 1844) zoology. Geoffroy’s father, a procurator at the tribunal of Etampes, a small town near Paris, had little money and fourteen children. Etienne, they youngest, received as a child the surname Saint-Hilaire, which he later joined to his family ...
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