''Janthina typica'' is an extinct

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

holoplankton Holoplankton are organisms that are planktic (they live in the water column and cannot swim against a current) for their entire life cycle. Holoplankton can be contrasted with meroplankton, which are planktic organisms that spend part of their l ...

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

, a marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

in the family

Epitoniidae Wentletraps are small, often white, very high-spired, predatory or ectoparasitic sea snails, marine gastropod mollusks in the family Epitoniidae.Gofas, S. (2010). Epitoniidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusc ...

, the violet snails or purple storm snails.MolluscaBase eds. (2024). MolluscaBase. Janthina typica (Bronn, 1861) †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=830818 on 2024-03-19

Distribution

Fossils of this marine species were found in the

Azores The Azores ( , , ; , ), officially the Autonomous Region of the Azores (), is one of the two autonomous regions of Portugal (along with Madeira). It is an archipelago composed of nine volcanic islands in the Macaronesia region of the North Atl ...

and also in

Pliocene The Pliocene ( ; also Pleiocene) is the epoch (geology), epoch in the geologic time scale that extends from 5.33 to 2.58Victoria Victoria most commonly refers to: * Queen Victoria (1819–1901), Queen of the United Kingdom and Empress of India * Victoria (state), a state of Australia * Victoria, British Columbia, Canada, a provincial capital * Victoria, Seychelles, the capi ...

, Australia.

References

* Bronn, H. G. (1861 1860". Die fossilien Reste von Santa Maria, der südlichsten der Azorischen Inseln. Untersucht und beschreiben von Dr. H.G. Bronn. Pp. 116–129, in: Hartung, G. (ed.), Die Azoren in ihrer äusseren Erscheinung und nach ihrer geognostischen Natur geschildert von George Hartung, mit beschreibung der fossilen reste von Prof. H.G. Bronn. Engelmann, Leipzig. * Cossmann (M.), 1925 - Essais de Paléoconchologie comparée. livraison 13, p. 1-345 * Tate, R. (1893). The gastropods of the older Tertiary of Australia. Part 4. Transactions of the Royal Society of South Australia. 17: 316–345. * Bartrum, J. A. (1919). New fossil Mollusca. Transactions of the New Zealand Institute. 51: 96–100. * Maxwell, P. A. (2009). Cenozoic Mollusca. pp 232–254 in Gordon, D. P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.

External links

Simone, L. R. L. (2014). Taxonomic study on the molluscs collected during the Marion-Dufresne expedition (MD55) off SE Brazil: the Naticidae (Mollusca: Caenogastropoda). Zoosystema. 36(3): 563-593

Beu A.G. (2017). Evolution of Janthina and Recluzia (Mollusca: Gastropoda: Epitoniidae). Records of the Australian Museum. 69(3): 119-222
Epitoniidae Gastropods described in 1861 {{paleo-gastropod-stub