Murchisonioidea

Murchisonioidea
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Vetigastropoda
Superfamily:	Murchisonioidea Koken, 1896
Families
See text

Murchisonioidea is an extinct superfamily of small to large sea snails, marine gastropod mollusks in the clade Vetigastropoda.^[1]

This superfamily was previously included in the Caenogastropoda by Ponder and Warén (1988) and by Bandel in studies published in 1993 and 1997. However, studies by Tracey et al. (1993)^[2] and by Frýda and Manda (1997)^[3] put them into the Archaeogastropoda. This has been confirmed by new findings on archaeopod-type protoconchs in species from this families, dating from the early Devonian.

Taxonomy

• † family Murchisoniidae Koken, 1896
• † family Cheeneetnukiidae Blodgett & Cook, 2002
• † family Hormotomidae Wenz, 1938

(Families that are exclusively fossil are indicated with a dagger †)

References

1. Bouchet, P. & Rocroi, J.-P. (2005). "Classification and Nomenclator of Gastropod Families". Malacologia 47 (1–2).
2. Tracey,, S.; J.A. Todd; D.H. Erwin (1993). Mollusca, Gastropoda; in : M.J. Benton (ed.) The Fossil Record, volume 2. London: Chapman & hall. pp. 131–167.
3. J. Frýda & S. Manda (1997). "A gastropod faunule from the Monograptus uniformis graptolite Biozone (Early Lochkovian, Early Devonian) in Bohemia". Mitteilungen aus dem Geologisch-Pläontologischen Institut der Universität Hamburg 80: 59–122.