Gérard Paul Deshayes bigraphy, stories - Geologists

Gérard Paul Deshayes : biography

May 13, 1795 - June 9, 1875

Gérard Paul Deshayes (May 13, 1795 – June 9, 1875) was a French geologist and conchologist.

He was born in Nancy, his father at that time being professor of experimental physics in the École Centrale of the département Meurthe

He studied medicine in Strasbourg, and afterwards took the degree of bachelier ès lettres in Paris in 1821; but he abandoned the medical profession in order to devote himself to natural history. For some time he gave private lessons on geology, and subsequently became professor of natural history in the Museum d'Histoire Naturelle.

He was distinguished for his researches on the fossil mollusca of the Paris Basin and of other Tertiary areas. His studies on the relations of the fossil to the recent species led him as early as 1829 to conclusions somewhat similar to those arrived at by Lyell, to whom Deshayes rendered much assistance in connection with the classification of the Tertiary system into Eocene, Miocene and Pliocene. The age of mammals in Europe, Asia and North America by Henry Fairfield Osborn Early Life: The Cambrian Period by Thom Holmes

With André Étienne d'Audebert de Férussac, he co-authored an important study on terrestrial and fluviatile mollusks titled Histoire naturelle générale et particulière des Mollusques terrestres et fluviatiles (1820-1851). Histoire naturelle générale et particulière des Mollusques terrestres et fluviatiles In 1839 he began the publication of his Traité élémentaire de conchyliologie, the last part of which was not issued until 1857. Traité élémentaire de conchyliologie In the same year (1839) he went to Algeria for the French Government, and spent three years in explorations in that country. His principal work, which resulted from the collections he made, Mollusques de l'Algérie, was issued (incomplete) in 1848.

He was a member of the Société Géologique de France, of which he served as chairman several times. In 1870 the Wollaston medal of the Geological Society of London was awarded to him. He died in Boran-sur-Oise.

Works

His publications included:

  • Description des coquilles fossiles des environs de Paris (2 vols. and atlas, 1824-1837)
  • Description de coquilles caractéristiques des terrains.– Paris: F. G. Levrault, 1831.– 264 pp., 14 pls.
  • Mollusques. In: Saint-Hilaire G., Deshayes G., Saint-Vincent B., Saint-Vincent B. Expédition scientifique de Morée. Section des sciences physiques. Tome III. Première partie. Zoologie. Première section.– Animaux vertébrés, mollusques et polypies.– Paris-Strasbourg: F. G. Levrault., 1832.– p. 81-203, pls. 18-26.
  • Traité élémentaire de conchyliologie avec les applications de cette science à la geologie.
    • (1839-1853). . (part 1 - Introduction)
    • (1843-1850). (Part 2)
    • (1839-1853). . (Explanation of plates)
    • (1839-1857). . (Atlas of plates)
  • Description des animaux sans vertèbres découverts dans le bassin de Paris (3 vols. and atlas, 1856-1866)
  • Catalogue des mollusques de l'île de la Reunion (1863).
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