Maurice Cossmann , full name Alexandre Édouard 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 .