{{Short description|Superfamily of gastropods}} {{automatic taxobox | name = Fionoidea | image = Fiona pinnata.jpg | taxon = Fionoidea | authority = Gray, 1857 | subdivision_ranks = Families | subdivision = See Families | synonyms = }}
'''Fionoidea''' is a superfamily of nudibranchs, shell-less marine gastropod molluscs or sea slugs, in the suborder Aeolidacea.<ref name=Korshunova_et_al2025/> The families within Fionoidea were shown to be monophyletic on DNA evidence and a re-interpretation of family characteristics was provided.<ref name=Korshunova_et_al2017/><ref name=Korshunova_et_al2025/>
==Families== According to Korshunova and colleagues (2025), the following families are recognised in the superfamily Fionoidea:<ref name=Korshunova_et_al2025/> * Family Abronicidae {{small|Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl & Picton, 2017}} * Family Calmidae {{small|Iredale & O'Donoghue, 1923}} * Family Cuthonellidae {{small|Miller, 1971}} * Family Cuthonidae {{small|Odhner, 1934}} * Family Eubranchidae {{small|Odhner, 1934}} * Family Fionidae {{small|Gray, 1857}} * Family Murmaniidae {{small|Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl & Picton, 2017}} * Family Tergipedidae {{small|Bergh, 1889}} * Family Trinchesiidae {{small|F. Nordsieck, 1972}} * Family Xenocratenidae {{small|Martynov, Lundin, Picton, Fletcher, Malmber &Korshunova, 2020}}
==References== <references>
<ref name=Korshunova_et_al2017>{{Cite journal |last=Korshunova |first=Tatiana |last2=Martynov |first2=Alexander |last3=Picton |first3=Bernard |date=2017-09-26 |title=Ontogeny as an important part of integrative taxonomy in tergipedid aeolidaceans (Gastropoda: Nudibranchia) with a description of a new genus and species from the Barents Sea |url=https://www.mapress.com/zt/article/view/zootaxa.4324.1.1 |journal=Zootaxa |volume=4324 |issue=1 |doi=10.11646/zootaxa.4324.1.1 |issn=1175-5334}}</ref>
<ref name=Korshunova_et_al2025>{{Cite journal |last=Korshunova |first=Tatiana |last2=Fletcher |first2=Karin |last3=Martynov |first3=Alexander |date=2025-08-01 |title=The endless forms are the most differentiated—how taxonomic pseudo-optimization masked natural diversity and evolution: the nudibranch case |url=https://academic.oup.com/zoolinnean/article/doi/10.1093/zoolinnean/zlaf057/8237533 |journal=Zoological Journal of the Linnean Society |language=en |volume=204 |issue=4 |doi=10.1093/zoolinnean/zlaf057 |issn=0024-4082|url-access=subscription }}</ref>
</references>
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Category:Fionoidea Category:Taxa named by John Edward Gray