Alvania diadema | |
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Shell of Alvania diadema (specimen at the MNHN, Paris) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Caenogastropoda |
Order: | Littorinimorpha |
Superfamily: | Rissooidea |
Family: | Rissoidae |
Genus: | Alvania |
Species: | †A. diadema
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Binomial name | |
†Alvania diadema De Stefani & Pantanelli, 1888
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Alvania diadema is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae. [1]
Fossils of this marine species were found in Pliocene strata off Siena, Italy and the Alpes-Maritimes, France.