Tylostoma ? sp.

Fig. 26N

Material. MGUH 33172 and a fragmentary internal mould in the same sample.

Occurrence. The lower Danian ‘dead layer’ in Dania Quarry, Northern Jutland.

Description. Shell large, strongly rounded in outline with a low spire and spire whorls. The most complete specimen MGUH 33172 shows signs of an internal raised band just abapical of periphery. Aperture moderately narrow with no sign of teeth or varices on outer lip or parietal region.

Remarks. The material is very fragmentary and does not allow for a confident generic assignment, but it shows a strong resemblance to Tylostoma, and here especially the middle Danian T. ampullariaeforme Ravn, 1902 from Denmark. It differs from this species by having a lower spire and a narrower aperture.