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Latouchella

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Kingdom
  
Animalia

Family
  
†Coreospiridae

Rank
  
Genus

Class
  
†Helcionelloida

Phylum
  
Mollusca

Order
  
Helcionellid

Latouchella httpsuploadwikimediaorgwikipediacommons22

Similar
  
Helcionelloida, Yochelcionella, Aldanellidae, Tommotia, Rostroconchia

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.

Contents

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: class Helcionelloida, order Helcionellida, superfamily Helcionelloidea, family Helcionellidae.

2005 taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 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.

2006-2007 taxonomy

The 2006-2007 taxonomy of the genus Latouchella is like this: 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

    Latouchella Wikipedia