Euthyneura

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Euthyneura

Snail-WA papa edit.jpg

Cepaea nemoralis

Scientific classification e
Kingdom:

Animalia
Phylum:

Mollusca
Class:

Gastropoda
Subclass:

Heterobranchia
Infraclass:

Euthyneura
Johann Wilhelm Spengel, 1881[1]

Diversity[2]

over 30000 species

Euthyneura is a taxonomic clade of snails and slugs, which includes species from freshwater, marine, aquatic and terrestrial gastropod mollusks in the clade Heterobranchia.


Euthyneura are considered the crown group of Gastropoda, and are characterised by several autapomorphies, but are named for euthyneury. They are considered to be the most successful and diverse group of Gastropoda. Within this taxon, the Gastropoda have reached their peak in species richness and 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]


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]




Contents





  • 1 2010 taxonomy


  • 2 2014 taxonomy


  • 3 2016 taxonomy


  • 4 References


  • 5 External links




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]


.mw-parser-output table.cladeborder-spacing:0;margin:0;font-size:100%;line-height:100%;border-collapse:separate;width:auto.mw-parser-output table.clade table.cladewidth:100%.mw-parser-output table.clade tdborder:0;padding:0;vertical-align:middle;text-align:center.mw-parser-output table.clade td.clade-labelwidth:0.8em;border:0;padding:0 0.2em;vertical-align:bottom;text-align:center.mw-parser-output table.clade td.clade-slabelborder:0;padding:0 0.2em;vertical-align:top;text-align:center.mw-parser-output table.clade td.clade-barvertical-align:middle;text-align:left;padding:0 0.5em.mw-parser-output table.clade td.clade-leafborder:0;padding:0;text-align:left;vertical-align:middle.mw-parser-output table.clade td.clade-leafRborder:0;padding:0;text-align:right



Heterobranchia








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




Euthyneura








Nudipleura












Euopisthobranchia





Panpulmonata







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








Euopisthobranchia





Panpulmonata







2016 taxonomy


Kano et al. (2016) proposed a new taxon Ringipleura and classified Ringiculoidea as sister group to Nudipleura:[2]






Heterobranchia








Lower Heterobranchia




Euthyneura














Acteonacea








Rissoelloidea





Acteonoidea





Ringipleura








Ringiculoidea





Nudipleura






Tectipleura








Euopisthobranchia





Panpulmonata









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. ^ abc Kano, Yasunori; Brenzinger, Bastian; Nützel, Alexander; Wilson, Nerida G.; Schrödl, Michael (2016-08-08). "Ringiculid bubble snails recovered as the sister group to sea slugs (Nudipleura)". Scientific Reports. 6: 30908. doi:10.1038/srep30908. ISSN 2045-2322. PMC 4976385. PMID 27498754. Retrieved 2017-05-12..mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em


  3. ^ abc Klussmann-Kolb A., Dinapoli A., Kuhn K., Streit B. & Albrecht C. (2008). "From sea to land and beyond – New insights into the evolution of euthyneuran Gastropoda (Mollusca)". BMC Evolutionary Biology 2008, 8: 57. doi:10.1186/1471-2148-8-57.


  4. ^ Dayrat B., Tillier A., Lecointre G. & Tillier S. (2001). "New clades of euthyneuran Gastropods (Mollusca) from 28S rRNA sequences". Molecular Phylogenetics and Evolution 19(2): 225-235. doi:10.1006/mpev.2001.0926.


  5. ^ ab Dayrat B. & Tillier S. (2002). "Evolutionary relationships of euthyneuran gastropods (Mollusca): a cladistic re-evaluation of morphological characters". Zoological Journal of the Linnean Society 135(4): 403-470. doi:10.1046/j.1096-3642.2002.00018.x


  6. ^ Grande C., Templado J., Cervera J. L. & Zardoya R. (2004). "Molecular Phylogeny of Euthyneura (Mollusca: Gastropoda)". Molecular Biology and Evolution 21(2): 303-313. doi:10.1093/molbev/msh016.


  7. ^ abc Jörger K. M., Stöger I., Kano Y., Fukuda H., Knebelsberger T. & Schrödl M. (2010). "On the origin of Acochlidia and other enigmatic euthyneuran gastropods, with implications for the systematics of Heterobranchia". BMC Evolutionary Biology 10: 323. doi:10.1186/1471-2148-10-323.


  8. ^ Wägele H., Klussmann-Kolb A., Verbeek E. & Schrödl M. (2014). "Flashback and foreshadowing—a review of the taxon Opisthobranchia". Organisms Diversity & Evolution 14(1): 133–149. doi:10.1007/s13127-013-0151-5




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