Mangelia dubia

Mangelia dubia is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

This is not Mangelia dubia (C. B. Adams, 1845) (synonym of Tenaturris dubia (C. B. Adams, 1845) ) (preoccupied by Pleurotoma dubia Cristofori & Jan, 1832 )

Distribution
This extinct marine species was found in Pliocene strata in Suffolk, UK.