Henri Coquand


Henri Coquand was a French geologist and paleontologist.
In 1841 he obtained his doctorate in sciences in Paris, and later served as a professor of geology at the University of Besançon, Poitiers and Marseille.
From his geological studies of southwestern France, he introduced the Upper Cretaceous stages: Coniacian, Santonian and Campanian. In 1871 he proposed the Berriasian stage of the Lower Cretaceous, named after Berrias, a town in the department of Ardèche. He also conducted geological / paleontological research in Spain, Algeria and Morocco.
In 1838 he founded the Muséum d'Aix in Aix-en-Provence. From 1862 to 1870 he was a correspondent member of the Comité des travaux historiques et scientifiques, and from 1871 to 1881, he was a munincipal councillor in Marseille.
The mineral coquandite commemorates his name; its chemical formula is.

Selected works

Traité des roches considérées au point de vue de leur origine et de leur composition, 1856 - Treatises on rocks considered from the point of view of their origins and compositions.Description physique, géologique, paléontologique et minéralogique du département de la Charente, 1856 - Physical, geological, paleontological and mineralogical descriptions of the department of Charente.Géologie et paléontologie de la région sud de la province de Constantine, 1862 - Geology and paleontology of the region south of Constantine Province.Description géologique de la Province de Constantine, 1864 - Geological description of Constantine Province. Monographie de l'étage aptien de l'Espagne, 1865 - Monograph on the Aptian stage of Spain.Monographie du genre Ostrea. Terrain Crétacé, 1869 - Monograph on the genus Ostrea, Cretaceous terrain.