Alvania alexandrae
| Alvania alexandrae | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Rissooidea |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | †A. alexandrae
|
| Binomial name | |
| †Alvania alexandrae O. Boettger, 1902
| |
| Synonyms | |
| |
Alvania alexandrae is an extinct species of small sea snail, first described by Otto Boettger in 1902 from fossils found in Romania. It belongs to the Rissoidae family.[1]
Distribution
Fossils of this marine species were found in Middle Miocene strata in Poland.
Taxonomy and classification
Alvania alexandrae is a marine gastropod mollusk in the family Rissoidae, part of the order Littorinimorpha. The genus Alvania is known for its minute sea snails, with shells typically measuring between 1 mm and 7 mm, ovate-conical in shape, and featuring reticulated axial and spiral elements. The species was described by Otto Boettger in his 1902 publication Zur Kenntnis der Fauna der mittelmiocänen Schichten von Kostej im Krassó-Szörényer Komitat, which focused on the fauna of middle Miocene deposits in what is now Romania.
Description and morphology
The length of the shell attains 3 mm, its diameter 1.5 mm.
Habitat and distribution
Alvania alexandrae is known from fossil deposits in the middle Miocene layers of Kostej, located in the Krassó-Szörényer county, now part of Romania.[2] During the middle Miocene, this region was submerged under the Paratethys Sea, a large marine basin that extended across Central and Eastern Europe.[3]
References
- ^ "WoRMS - World Register of Marine Species - Out of scope". www.marinespecies.org. Retrieved 2025-04-14.
- ^ Amati, Bruno; Taviani, Marco; Oliverio, Marco (2024-03-27). "Rissoidae (Mollusca, Gastropoda, Rissooidea) from taphocoenotic assemblages of the Strait of Sicily (Mediterranean Sea) with the description of two new species". Zootaxa. 5432 (1): 19–37. doi:10.11646/zootaxa.5432.1.2. ISSN 1175-5334.
- ^ "WoRMS - World Register of Marine Species - Pseudonoba O. Boettger, 1902". www.marinespecies.org. Retrieved 2025-04-14.
- Kowalke, T.; Harzhauser, M. (2004). Early ontogeny and palaeoecology of the Mid-Miocene rissoid gastropods of the Central Paratethys. Acta Palaeontologica Polonica. 49(1): 111–134.
- Zilch, A. (1934). Zur Fauna des Mittel-Miocäns von Kostej (Banat). Typus-Bestimmung und Tafeln zu O. Boettger's Bearbeitungen. Senckenbergiana 16:193-302. 22: pls.