Alvania beyrichii

Alvania beyrichii
Shell of Alvania beyrichii (holotype)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Superfamily:	Rissooidea
Family:	Rissoidae
Genus:	Alvania
Species:	†A. beyrichii
Binomial name
†Alvania beyrichii (Bosquet, 1859)
Synonyms
† Rissoa beyrichiiBosquet, 1859 (basionym; does not belong to Rissoa)

Alvania beyrichii is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae. ^[1]

Description

The length of the shell attains 1.6 mm, its diameter 1.2 mm.

Their functional type is Benthos. ^[1]

Their feeding type was a grazer and also a detritus feeder. ^[1]

Distribution

Fossils of this species were found in Lower Oligocene strata in Belgium.

References

1. MolluscaBase eds. (2024). MolluscaBase. Alvania beyrichii (Bosquet, 1859) †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1376484 on 2024-02-08

• Glibert, M. and J. de Heinzelin de Braucourt. (1954). L'Oligocène Inférieur Belge. Volume Jubilaire Victor van Straelen. 281–438; plates I-VII. 97; plates I-X.

External links

• Bosquet, J. (1859). Recherches paléontologiques sur le terrain tertiaire du Limbourg Néerlandais. Verhandelingen der Koninklijke Akademie van Wetenschappen. 7: 1-30.