Alvania houdasi
Alvania houdasi is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.[1] DescriptionThe length of the shell attains 2.5 mm, its diameter 1 mm.
DistributionFossils of this species were found in Eocene strata in Île-de-France, France. References
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