Runcinoidea is a taxonomic superfamily (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005) or a clade Runcinaecea (according to the Malaquias et al. (2009)) of sea slugs, marine gastropod mollusks in the order RuncinidaJörger 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. .MolluscaBase eds. (2021). MolluscaBase. Runcinoidea H. Adams & A. Adams, 1854. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=411898 on 2021-04-12
Taxonomy 2005 taxonomy Runcinoidea was recognized as a superfamily in the clade Cephalaspidea, within the informal group Opisthobranchia in the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
They also recognized two families, Runcinidae and Ilbiidae.
2009 taxonomy Malaquias et al. (2009)Malaquias M. A. E., Dodds J. M., Bouchet P. & Reid D. G. (2009). "A molecular phylogeny of the Cephalaspidea sensu lato (Gastropoda: Euthyneura): Architectibranchia redefined and Runcinacea reinstated". Zoologica Scripta 38(1): 23-41. . reinstated Runcinacea as a valid taxon outside the Cephalaspidea.
They also recognized two families Runcinidae (with genus Runcina) and Ilbiidae, but they did not mention superfamilies.
2010 taxonomy Jörger et al. 2010 moved Runcinacea to the Euopisthobranchia.
2017 taxonomy Runcinoidea was classified in the order Runcinida by the revised classification of the Gastropoda.Revised Classification, Nomenclator and Typification of Gastropod and Monoplacophoran Families" by Philippe Bouchet & Jean-Pierre Rocroi, Bernhard Hausdorf, Andrzej Kaim, Yasunori Kano, Alexander Nützel, Pavel Parkhaev, Michael Schrödl and Ellen E. Strong in Malacologia, 2017, 61(1–2): 1–52
Families Families within the Runcinoidea include: Family Runcinidae H. Adams & A. Adams, 1854 Family Ilbiidae Burn, 1963 Synonyms Ildicidae Burn, 1963: synonym of Runcinidae H. Adams & A. Adams, 1854 Peltidae Vayssière, 1885: synonym of Runcinidae H. Adams & A. Adams, 1854
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