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.
Umbraculoidea | |
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A live individual of Tylodina perversa in situ | |
Scientific classification | |
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Superfamily: | Umbraculoidea Dall, 1889 (1827)
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Superfamilies | |
See text |
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]
A study by Grande et al., published in 2004, concluded that Umbraculoidea was a sister clade to the Cephalaspidea (Acteonoidea excluded).[3]
Umbraculoidea contains two families:
Jörger et al. (2010)[1] moved Umbraculoidea to the Euopisthobranchia.