DetailsTurritella sp gastropod mollusc collected from Eocene sediments in Fercourt, France. Turritella is a genus of marine gastropod mollusc which is still around today. These specimens are in good condition; they have smooth shells which exhibit fine striations and the textbook turreted or 'unicorn horn' shape. The shells measure between 20 and 25 mm in length from the base of the aperture to the apex of the shell. Supplied in a small plastic bag with an information label.