Euthyneura

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Euthyneura
Cepaea nemoralis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Infraclass: Euthyneura
Johann Wilhelm Spengel, 1881[1]
Diversity[2]
Over 30000 species

Euthyneura is a

mollusks in the clade Heterobranchia
.

Euthyneura are characterised by several

ecological diversity. This obvious evolutionary success can probably be attributed to several factors. Marine Opisthobranchia, e.g., have evolved several clades specialised on less used food resources such as sponges or cnidarians. A key innovation in the evolution of Pulmonata was the colonization of freshwater and terrestrial habitats.[3]

pleurobranch
with the gill on the right side.

Various phylogenetic studies focused on Euthyneura: Dayrat et al. (2001),[4] Dayrat & Tillier (2002)[5] and Grande et al. (2004).[6] Morphological analyses by Dayrat and Tillier (2002)[5] demonstrated the need to explore new datasets in order to critically analyse the phylogeny of this controversial group of gastropods. Klussmann-Kolb et al. (2008) traced an evolutionary scenario regarding colonisation of different habitats based on phylogenetic hypothesis and they showed that traditional classification of Euthyneura needs to be reconsidered.[3]

2010 taxonomy

Jörger et al. (2010)[7] have redefined major groups within the Heterobranchia and a cladogram showing phylogenic relations of Euthyneura is as follows:[7]

Heterobranchia

Lower Heterobranchia (including Acteonoidea) - Lower Heterobranchia does not form a clade in the study by Jörger et al. (2010):[7]

Euthyneura

2014 taxonomy

Cladogram showing phylogenic relations of Euthyneura sensu Wägele et al. (2014):[8][2]

Heterobranchia

Lower Heterobranchia

Euthyneura
Acteonacea

Rissoelloidea

Acteonoidea

Nudipleura

Pleurobranchoidea

Nudibranchia

Anthobranchia

Cladobranchia

Tectipleura

2016 taxonomy

Kano et al. (2016) proposed a new taxon

Ringiculoidea as sister group to Nudipleura:[2]


References

This article incorporates CC-BY-2.0 text from the reference[3]

  1. ^ Johann Wilhelm Spengel (1881). "Die Geruchsorgane und des Nervensystem der Mollusken". Zeitschrift für wissenschaftliche Zoologie 35(3): 333-383.
  2. ^
    PMID 27498754
    .
  3. ^ .
  4. .
  5. ^
  6. .
  7. ^ .