Alvania interrupta
Appearance
Alvania interrupta | |
---|---|
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Caenogastropoda |
Order: | Littorinimorpha |
Superfamily: | Rissooidea |
Family: | Rissoidae |
Genus: | Alvania |
Species: | †A. interrupta
|
Binomial name | |
†Alvania interrupta (H. J. Finlay, 1924)
| |
Synonyms | |
|
Alvania interrupta is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.[1]
Description
[edit]This species is characterized by its irregularly-placed spiral ribs, these being crowded anteriorly, but almost absent posteriorly, so that spire-whorls have only two distinct ribs close to suture below. There are, however, traces of faint flattish ribs with linear interstices between these and suture above, and a distinct groove crosses ribs just below suture. [2]
Distribution
[edit]Fossils of this marine species were found in Tertiary strata in New Zealand
References
[edit]- ^ MolluscaBase eds. (2024). MolluscaBase. Alvania interrupta (H. J. Finlay, 1924) †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=832775 on 2024-02-14
- ^ Finlay H.J. (1924). New Zealand Tertiary rissoids. Transactions of the New Zealand Institute. 55: 480-494.
This article incorporates text from this source, which is in the public domain.