Alvania dumasi
| Alvania dumasi | |
|---|---|
 | |
| Shell of Alvania dumasi (holotype) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Rissooidea |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | †A. dumasi |
| Binomial name | |
| †Alvania dumasi (Cossmann, 1899) | |
| Synonyms | |
| † Rissoia dumasi Cossmann, 1899 | |
Alvania dumasi is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.[1]
Description
The length of the shell attains 3¼ mm, its diameter 2 mm.
Distribution
Fossils were found in Eocene strata in the Lower Loire basin, France.
References
- ^ MolluscaBase eds. (2024). MolluscaBase. Alvania dumasi (Cossmann, 1899) †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=880754 on 2024-02-11
External links
- Cossmann, M. (1899). Mollusques éocèniques de la Loire-inférieure. Tome 2e. Premier fascicule. Bulletin de la Société des Sciences naturelles de l'Ouest de la France. 9(4): 307-360, pl. 23-26
- Cossmann, M. (1919). Supplément aux mollusques éocéniques de la Loire-Inférieure. I. — Gastropodes et scaphopodes. Bulletin de la Société des Sciences Naturelles de l'Ouest de la France. série 3, 5: 53-141, pls 1-4.