Alvania urgonensis

Alvania urgonensis
Shell of Alvania urgonensis (holotype)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Rissooidea
Family: Rissoidae
Genus: Alvania
Species:
†A. urgonensis
Binomial name
†Alvania urgonensis
Cossmann, 1918

Alvania urgonensis 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 3.5 mm, its diameter 1.25 mm.

Distribution

Fossils of this species were in Barremian strata (Cretaceous) near Orgon, southern France.

References

  1. ^ MolluscaBase eds. (2024). MolluscaBase. Alvania urgonensis Cossmann, 1918 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=866085 on 2024-02-18


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