Pleurotomella polycolpa
Pleurotomella polycolpa is an extinct species of sea snail, a marine gastropod mollusk in the family Raphitomidae. Description Distribution Fossils of this marine species were found in Eocene strata of Île-de-France, France. References Cossmann, Maurice. Catalogue illustré des coquilles fossiles de l'eocène des environs de Paris... Vol. 4. 1889. polycolpa Gastropods described in 1889