Cenozoic evolution of Muricidae (Mollusca, Neogastropoda) in the Southern Ocean, with the description of a new subfamily

Gastropods are among the most studied group in Antarctica, and taxa with an advanced status of systematic knowledge can be used as a model to study how oceanographic and climatic patterns shaped Recent faunal assemblages. Within the ongoing study of the muricid phylogeny, we have analysed molecular...

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Bibliographic Details
Published in:Zoologica Scripta
Main Authors: BARCO A., HOUART R., OLIVERIO M., SCHIAPARELLI, STEFANO
Other Authors: Barco, A., Schiaparelli, Stefano, Houart, R., Oliverio, M.
Format: Article in Journal/Newspaper
Language:English
Published: 2012
Subjects:
Antarctic
Southern Ocean
Antarc*
Antarctica
Online Access:http://hdl.handle.net/11567/386712
https://doi.org/10.1111/j.1463-6409.2012.00554.x
Description
Summary:Gastropods are among the most studied group in Antarctica, and taxa with an advanced status of systematic knowledge can be used as a model to study how oceanographic and climatic patterns shaped Recent faunal assemblages. Within the ongoing study of the muricid phylogeny, we have analysed molecular and morphological data from species traditionally ascribed to the muricid subfamily Trophoninae. Particularly, the availability of specimens collected in the Southern Ocean and surrounding basins allowed to demonstrate as the genera Pagodula, Xymenopsis, Xymene and Trophonella, which are traditionally classified in the Trophoninae, actually belong to a distinct lineage, for which the new subfamily Pagodulinae is herein introduced. We propose and discuss a possible framework for the origin and radiation of Antarctic muricids

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