Alvania sublagouardensis
Alvania sublagouardensis 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 2.30 mm, its diameter 1.30 mm.
DistributionFossils of this species were found in Oligocene strata in Aquitaine, France; age range: 28.4 to 23.03 Ma References
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