Murchisonioidea Explained

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

Notes and References

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