Umbraculoidea

Umbraculoidea
A live individual of Tylodina perversa in situ
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Clade:	Euopisthobranchia
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). ^[1]

Taxonomy

A study by Grande et al., published in 2004, concluded that Umbraculoidea was a sister clade to the Cephalaspidea (Acteonoidea excluded). ^[2]

2005 taxonomy

Umbraculoidea contains two families:

• Family Umbraculidae
• Family Tylodinidae

2010 taxonomy

Jörger et al. (2010) ^[3] moved Umbraculoidea to the Euopisthobranchia.

References

1. Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia . 47 (1–2). Hackenheim, Germany: ConchBooks: 1–397. ISBN   3-925919-72-4. ISSN   0076-2997.
2. 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.
3. 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 (1): 323. Bibcode:2010BMCEE..10..323J. doi: 10.1186/1471-2148-10-323 . PMC   3087543 . PMID   20973994.

External links

• www.seaslugforum.net