Euthyneura: Difference between revisions
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| name = Euthyneura |
| name = Euthyneura |
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Revision as of 22:31, 17 January 2013
| Euthyneura | |
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| (unranked): | clade Heterobranchia clade Euthyneura |
Euthyneura is a taxonomic clade of snails and slugs, which includes species from the sea, the land and freshwater; marine, aquatic and terrestrial gastropod mollusks in the clade Heterobranchia.
Euthyneura are considered the crown group of Gastropoda.[2] Euthyneura are characterised by several autapomorphies.[2] The Euthyneura are considered to be the most successful and diverse group of Gastropoda.[2] Within this taxon Gastropoda have reached their peak in species richness and ecological diversity.[2] This obvious evolutionary success can probably be attributed to several factors.[2] Marine Opisthobranchia, e.g., have evolved several clades specialised on less utilised food resources such as sponges or cnidarians.[2] A key innovation in the evolution of Pulmonata was the colonization of freshwater and terrestrial habitats.[2]
Various phylogenetic studies focused on Euthyneura: Dayrat et al. (2001),[3] Dayrat & Tillier (2002)[4] and Grande et al. (2004).[5] Morphological analyses by Dayrat and Tillier (2002)[4] demonstrated the need to explore new datasets in order to critically analyse the phylogeny of this controversial group of gastropods.[2] Klussmann-Kolb et al. (2008)[2] 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.[2]
2010 taxonomy
Jörger et al. (2010)[6] have redefined major groups within the Heterobranchia and a cladogram showing phylogenic relations of Euthyneura is as follows:[6]
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References
This article incorporates CC-BY-2.0 text from the reference[2]
- ^ Spengel J. W. (1881). "Die Geruchsorgane und des Nervensystem der Mollusken". Zeitschrift für wissenschaftliche Zoologie 35(3): 333-383.
- ^ a b c d e f g h i j k 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.
- ^ 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.
- ^ a b 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
- ^ 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.
- ^ a b c 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.