Cylichna ? sp. A

Figs 35 U–V

2014 Cylichna sp. A Hansen & Surlyk: tab. 3.

Material. One external mould MGUH 33320.

Occurrence. Lithified top of the Maastrichtian Højerup Member in Holtug Quarry, Stevns Klint.

Description. Shell deeply involute, inflated cylindrical with deep apical spire truncation. Aperture longer than last whorl; inner lip covered by callus. Columella with at least two columellar folds.

Teleoconch sculpture dominated by strong growth lines, crossed by sporadic, very weakly developed spiral grooves.

Measurements. The specimen MGUH 33320 is 4.3 mm high and 2.5 mm wide.

Remarks. This taxon is clearly distinguished from the other cylichniid taxa from the Danish boundary layers by the two or more columellar folds; the open spire truncation and, perhaps, by the marked growth lines.