Latouchella
| Latouchella |
|
|---|---|
| File:Latouchella costata.JPG | |
| A reconstruction of Latouchella costata | |
Scientific classification  |
|
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| (unranked): | incertae sedis |
| Class: | †Helcionelloida |
| Order: | †Helcionelliformes |
| Family: | †Coreospiridae |
| Genus: | †Latouchella Cobbold, 1921 |
| Species | |
|
See text. |
|
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Latouchella is an extinct genus of marine invertebrate animal, that is considered to be a mollusk and which may be a sea snail, a gastropod. It is a helcionellid from the Tommotian epoch of what is now Siberia. Its tightly-coiled, spiral shell contains a number of low "walls" running up the front surface of the interior; these would have directed water currents within its shell. Between these walls are a series of furrows, parallel to the shell's aperture, giving casts of the internal structure the appearance of a railway line, with sleepers (created by furrows) tying together paired rails that run towards the apex of the shell.[1]
Description
This genus had a curved, segmented shell, and it is often reconstructed as a snail-like creature.
Older taxonomy
The taxonomy of the genus Latouchella was originally like this[citation needed]: class Helcionelloida, order Helcionellida, superfamily Helcionelloidea, family Helcionellidae.
2005 taxonomy
The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005[2] categorizes Latouchella in the family Coreospiridae in the superfamilia Scenelloidea within the Paleozoic molluscs of uncertain systematic position.
Latouchella was a type genus in the family Latouchellidae Golikov & Starobogatov, 1989, however Latouchellidae is a synonym of Coreospiridae.[2]
2006-2007 taxonomy
The 2006-2007 taxonomy of the genus Latouchella is like this[citation needed]: class Helcionelloida, subclass Archaeobranchia, order Helcionelliformes, superfamily Helcionelloidea, family Coreospiridae.
Species
Species in the genus Latouchella include:
- Latouchella costata (type)
- L. accordionata
- L. adelocosma
- L. adunca
- L. alicae
- L. arcuata
- L. arguta
- L. burlingi
- L. dimicostata
- L. holmdalense
- L. iacobinica
- L. korobokovi
- L. merino
- L. ostenfeldense
- L. pearylandica
- L. pocatelloensis
- L. sonlingpoensis
- L. taijiangensis
- ? Latouchella memorabilis Missarzhevsky in Rozanov et al., 1969
- ? Latouchella orientalis
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. ISBN 3-925919-72-4. ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278
