Turbonilla s.l. sp. 3

(Fig. 9 C1, C2)

MATERIAL EXAMINED. — Sample F11: AMPG (IV) 2584-2585 (two specimens).

DIMENSIONS. — Maximum height: 1.25 mm

DISTRIBUTION. — Early Miocene. Proto-Mediterranean in Greece (this paper).

DESCRIPTION

Type A2 helicoidal protoconch; four convex teleoconch whorls preserved. Protoconch forms an angle of about 105° with the axis of the shell. Teleoconch sculpture consists of closely and regularly spaced prosocline fine axial ribs. Inconspicuous columellar fold; aperture missing.

REMARKS

A third species of Turbonilla is present.The sculpture is reminiscent of Turbonilla sp. 1, but the axial ribs are less prominent, more rounded and more closely spaced; the whorls are also more convex.