| Alvania helenae | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Rissooidea |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | †A. helenae |
| Binomial name | |
| †Alvania helenae O. Boettger, 1902 | |
Alvania helenae is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae. [1]
Fossils were found in Mid Miocene strata in Central Europe
Iravadiidae is a family of minute sea snails, marine gastropod molluscs in the superfamily Truncatelloidea and the clade Littorinimorpha.
Alvania is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Rissoidae.
Cingula is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Rissoidae.
Pseudonoba is a genus of sea snails, marine gastropod mollusks in the family Iravadiidae.
Zebinella eleonorae is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.
Zebinella sororcula is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.
Zebinella semidecussata is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.
Alvania dollfusi is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania alexandrae is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania anabaptizata is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania convexispira is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania productilis is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania subclavata is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania sublaevigata is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania angusticostata is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania butonensis is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania waisiuensis is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Alvania critica is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Alvania ellae is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Alvania giselae is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
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