Neomphaloidea
{{Short description|Superfamily of gastropods}}
{{Automatic taxobox
|taxon = Neomphaloidea
|image = Three populations of Chrysomallon squamiferum.jpg
|image_caption = Chrysomallon squamiferum
|authority = McLean, 1981McLean J. H. (8 December 1981). "The Galapagos rift limpet Neomphalus: relevance to understanding the evolution of a major paleozoic-mesozoic radiation". Malacologia [https://archive.org/details/malacologia211981inst 21(1-2)]: [https://archive.org/stream/malacologia211981inst#page/290/mode/2up 291]-336.
|synonyms_ref =
|synonyms =
|subdivision_ranks = Families
|subdivision =
|diversity_ref =
|diversity = 48 extant species
|display_parents = 3
}}
Neomphaloidea is a superfamily of deep-sea snails or limpets, marine gastropod mollusks. Neomphaloidea is the only superfamily in the order Neomphalida.
The order Neomphalida has the largest in situ radiation in hydrothermal vent habitats. Neomphalida is a major taxonomic grouping of sea snails, vent-endemic marine gastropod mollusks that form a very ancient lineage, going back to the Palaeozoic era.
2005 taxonomy
The superfamily Neomphaloidea was regarded for a long time as belonging within the clade Vetigastropoda. Superfamily Neomphaloidea was also classified in the clade Vetigastropoda according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.{{Bouchet 2005}}
2010 taxonomy
Molecular phylogeny showed that Neomphaloidea belongs in its own order, the Neomphalida, and that this clade is basal to the Vetigastropoda.Ponder W. F. & Lindberg D. R. (1997). Zool. J. Linn. Soc. 119: 83–265. The Neomphalina is, based on optimal phylogenetic analysis, a monophyletic clade, with uncertain relations among the gastropods.McArthur A. G. & Koop B. F. (1999). Molecular Phylogenet. Evol. 13: 255–274.
Description
The anatomical characteristics of the Neomphaloidea largely follow the patterns in the Vetigastropoda. However, unusual morphological and phylogentic characters suggest a different systematic position and place it in its own order, the Neomphalida. The formal placement of Neomphalida within the Gastropoda however remains ambiguous.[https://edisciplinas.usp.br/pluginfile.php/130715/mod_resource/content/1/Aktipis%20%20Giribet,%202010.%20A%20phylogeny%20of%20Vetigastropoda%20and%20other%20archaeogastropods,%20re-organizing%20%20old%20gastropod%20clades.pdf Stephanie W. Aktipis & Gonzalo Giribet (2010). "A phylogeny of Vetigastropoda and other “archaeogastropods”: re-organizing old gastropod clades". Invertebrate Biology 129(3): 220-240] {{Webarchive|url=https://web.archive.org/web/20180225064941/https://edisciplinas.usp.br/pluginfile.php/130715/mod_resource/content/1/Aktipis%20%20Giribet,%202010.%20A%20phylogeny%20of%20Vetigastropoda%20and%20other%20archaeogastropods,%20re-organizing%20%20old%20gastropod%20clades.pdf |date=2018-02-25 }} {{doi|10.1111/j.1744-7410.2010.00198.x}}.
Families
Families within the Neomphaloidea include:
- Melanodrymiidae Salvini-Plawen & Steiner, 1995
- Neomphalidae McLean, 1981
- Peltospiridae McLean, 1989
A few genera within Neomphaloidea have been unassigned to a family:
- Helicrenion Warén & Bouchet, 1993Bouchet, P. (2016). Helicrenion Warén & Bouchet, 1993. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=536900 on 2017-05-26
- Retiskenea Warén & Bouchet, 2001Bouchet, P. (2010). Retiskenea Warén & Bouchet, 2001. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=449910 on 2017-05-26
;Synonyms:
- Cyathermiidae J. H. McLean, 1990: synonym of Neomphalidae J. H. McLean, 1981
See also
The other superfamily of hydrothermal vent limpets is the Lepetodriloidea.
References
{{Reflist}}
External links
- [https://books.google.com/books?id=wxh_thTHZXMC&pg=PA185 Steffen Kiel (2010), The Vent and Seep Biota: Aspects from Microbes to Ecosystems, Nature]
- [http://www.mapress.com/zoosymposia/content/2008/v1/f/v001p119.pdf Thomas Kunze, Martin Hess, Martin Brückner, Friederike Beck & Gerhard Haszprunar, Skeneimorph gastropods in Neomphalina and Vetigastropoda — A preliminary report, Zoosymposia 1: 119–131 (2008); ISSN 1178-9913]
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