‘ Terebralia ’ tritaenia (Cossmann, 1889)

Potamides tritaenia Cossmann, 1889: 74, 75, pl. 2, fig. 14.

Terebralia tritaenia – Cossmann & Pissarro 1913: pl. 29, fig. 29 quat. 6.

Terebralia (s. str.) tritaenia – Le Renard & Pacaud 1995: 111.

DISTRIBUTION. — North-eastern Atlantic: Lutetian of the Paris Basin (Cossmann 1889; Le Renard & Pacaud 1995).

REMARKS

Cossmann (1889) described the protoconch of the species as a flat button, which suggests a short larval stage and possibly a direct development. The attribution of the species to Terebralia was suggested by Cossmann & Pissarro (1913) and followed by Le Renard & Pacaud (1995) in their revision of the Paleogene taxa of the Paris Basin. The tetragonal aperture, comparatively thin outer lip and the absence of an inner lip are features that exclude placement in the genus.