Mangelia dubia is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.[1]
This is not Mangelia dubia (C. B. Adams, 1845) (synonym of Tenaturris dubia (C. B. Adams, 1845)) (preoccupied by Pleurotoma dubia Cristofori & Jan, 1832)
This extinct marine species was found in Pliocene strata in Suffolk, UK.
. Frederic William Harmer (geologist) . The Pliocene Mollusca of Great Britain being supplementary to SV Wood's Monograph of the Crag . 1915 .