Mangelia compsacosta is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Julia Anna Gardner, The Molluscan Fauna of the Alum Bluff Group of Florida; UNITED STATES DEPARTMENT OF THE INTERIOR, GEOLOGICAL SURVEY, Professional paper 142 (1947)
Description
The length of the shell attains 5.8 mm, its diameter is 2 mm. Distribution This extinct marine species was found in the Alum Bluff Group, Florida, USA.
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