Umbraculoidea

Umbraculoidea
	A live individual of Tylodina perversa in situ
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
(unranked):	clade Heterobranchia; clade Euthyneura; clade Euopisthobranchia[1]; clade Umbraculida
Superfamily:	Umbraculoidea; Dall, 1889 (1827)
Superfamilies
	See text

Umbraculoidea is a superfamily of unusual false limpets with a thin soft patelliform shell, marine gastropod molluscs in the clade Umbraculida, within the clade Euopisthobranchia.

There are two families in this superfamily, which is listed as the only superfamily in the clade Umbraculida within the informal group Opisthobranchia in the taxonomy of Bouchet & Rocroi (2005).[2]

Taxonomy

A study by Grande et al., published in 2004, concluded that Umbraculoidea was a sister clade to the Cephalaspidea (Acteonoidea excluded).[3]

2005 taxonomy

Umbraculoidea contains two families:

Family Umbraculidae
Family Tylodinidae

2010 taxonomy

Jörger et al. (2010)[1] moved Umbraculoidea to the Euopisthobranchia.

Footnotes

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. PMC 3087543. PMID 20973994.
Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
C. Grande; J. Templado; J.L. Ververa; R. Zardoya (2004). "Phylogenetic relationships among Opisthobranchia (Mollusca, Gastropoda) based on mitochondrial cox 1, tmV, and rmL genes". Molecular Phylogenetics and Evolution. 33 (2): 378–388. doi:10.1016/j.ympev.2004.06.008. PMID 15336672.

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External links

www.seaslugforum.net

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[Jörger_2010-1] 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. PMC 3087543. PMID 20973994.

[Bouchet_2005-2] Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.

[Grande-3] C. Grande; J. Templado; J.L. Ververa; R. Zardoya (2004). "Phylogenetic relationships among Opisthobranchia (Mollusca, Gastropoda) based on mitochondrial cox 1, tmV, and rmL genes". Molecular Phylogenetics and Evolution. 33 (2): 378–388. doi:10.1016/j.ympev.2004.06.008. PMID 15336672.