Alexandre Édouard Maurice Cossmann , full name Maurice Cossmann ( 18 September , 1850 -- 17 May , 1924 ) was a French paleontologist and malacologist .
Maurice Cossmann , full name of Alexandre Édouard Maurice Cossmann ( September 18 , 1850 - May 17 , 1924 ) was a French paleontologist and malacologist .