''Petaloconchus intortus'' is an extinct

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of sea snail, a marine gastropod

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...

in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Vermetidae The Vermetidae, the worm snails or worm shells, are a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Littorinimorpha. The shells of species in the family Vermetidae are extremely irregular, and do no ...

, the worm snails or worm shells. MolluscaBase eds. (2021). MolluscaBase. Petaloconchus intortus (Lamarck, 1818) †. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1440565 on 2022-01-01

Distribution

Fossils of this species were found in Southern France.

References

* Landau B.M., Ceulemans L. & Van Dingenen F. (2018). The upper Miocene gastropods of northwestern France, 2. Caenogastropoda. Cainozoic Research. 18(2): 177-368.

External links

Lamarck, J.-B., 1818. ''Histoire naturelle des animaux sans vertèbres, présentant les caractères généraux et particuliers de ces animaux...'', Tome 5 (1818): 1–612.
*Encyclopedia of Life, ''Petaloconchus intortus'' http://eol.org/pages/4878345/names *Fossilworks, ''Petaloconchus intortus'' http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=114784 Vermetidae Taxa named by Jean-Baptiste Lamarck Gastropods described in 1818 {{Vermetidae-stub