Geoffroy Saint-Hilaire, Étienne


Geoffroy Saint-Hilaire, Étienne
(1772-1844)
   naturalist
   Born in Étampes, Etienne Geoffroy Saint-Hilaire was interested in mineralogy before becoming professor of zoology at the Museum of Natural History of Paris (1793), where he later worked with georges cuvier. In 1798, Geoffroy Saint-Hilaire took part in Napoléon Bonaparte's expedition to Egypt (see napoléon i), where he made numerous observations on the diverse animal species (especially reptiles and fish). His work in comparative anatomy and paleontology was guided by the theory of a unique plan of organization of living beings and was based on the idea of the subordination of organs within the body and, above all, the anatomical connection and similarity of species that itself is the basis of comparative anatomy. He discovered a dental system in birds, using skeletal evidence to understand the form of living creatures. This work also helped to establish the field of embryology. Geoffroy Saint-Hilaire's studies eventually led him to oppose the theories of Cuvier, and he asserted that the environment could effect changes in species. He was named to the Academy of Sciences in 1807.

France. A reference guide from Renaissance to the Present . 1884.

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  • Geoffroy Saint-Hilaire , Etienne — (1772–1844) French biologist The youngest of fourteen children in a poor family from Etampes in France, Geoffroy was supported by the local clergy, who recognized his precocious intelligence. He took a scholarship to the Collège de Navarre, Paris …   Scientists

  • Geoffroy Saint-Hilaire, Étienne — ▪ French naturalist born April 15, 1772, Étampes, Fr. died June 19, 1844, Paris       French naturalist who established the principle of “unity of composition,” postulating a single consistent structural plan basic to all animals as a major tenet …   Universalium

  • Geoffroy Saint Hilaire, Etienne — ► (1772 1844) Naturalista francés. Es uno de los precursores de la teoría evolucionista. Autor de Historia natural de los mamíferos …   Enciclopedia Universal

  • Étienne Geoffroy Saint-Hilaire — (* 15. April 1772 in Étampes; † 19. Juni 1844 in Paris) war ein französischer Zoologe. Inhaltsverzeichnis …   Deutsch Wikipedia

  • Etienne Geoffroy-Saint-Hilaire — Étienne Geoffroy Saint Hilaire Pour les articles homonymes, voir Geoffroy Saint Hilaire, Étienne, Geoffroy et Saint Hilaire. Étienne Geoffroy Saint Hilaire, né le 15 avril 1772 …   Wikipédia en Français

  • Etienne Geoffroy Saint-Hilaire — Étienne Geoffroy Saint Hilaire Pour les articles homonymes, voir Geoffroy Saint Hilaire, Étienne, Geoffroy et Saint Hilaire. Étienne Geoffroy Saint Hilaire, né le 15 avril 1772 …   Wikipédia en Français

  • Étienne geoffroy saint-hilaire — Pour les articles homonymes, voir Geoffroy Saint Hilaire, Étienne, Geoffroy et Saint Hilaire. Étienne Geoffroy Saint Hilaire, né le 15 avril 1772 …   Wikipédia en Français

  • Étienne Geoffroy Saint-Hilaire — Nacimiento 15 de abril de 1772 Étampes Fallecim …   Wikipedia Español

  • Etienne Geoffroy Saint-Hilaire — Étienne Geoffroy Saint Hilaire Étienne Geoffroy Saint Hilaire (* 15. April 1772 in Étampes; † 19. Juni 1844 in Paris) war ein französischer Zoologe. Inhaltsverzeichnis …   Deutsch Wikipedia

  • Geoffroy Saint-Hilaire — Saint Hilaire ist der Familienname folgender Personen: Hilarius von Poitiers, Kirchenlehrer des 4. Jahrhunderts, Heiliger, frz. Saint Hilaire Étienne Geoffroy Saint Hilaire (1772 1844), französischer Zoologe Isidore Geoffroy Saint Hilaire (1805… …   Deutsch Wikipedia


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