Hindawi Publishing Corporation BioMed Research International Volume 2013, Article ID 407072, 18 pages http://dx.doi.org/10.1155/2013/407072 Research Article The Continuing Debate on Deep Molluscan Phylogeny: Evidence for Serialia (Mollusca, Monoplacophora + Polyplacophora) I. Stöger,1,2 J. D. Sigwart,3 Y. Kano,4 T. Knebelsberger,5 B. A. Marshall,6 E. Schwabe,1,2 and M. Schrödl1,2 1 SNSB-Bavarian State Collection of Zoology, Munchhausenstraße¨ 21, 81247 Munich, Germany 2 Faculty of Biology, Department II, Ludwig-Maximilians-Universitat¨ Munchen,¨ Großhaderner Straße 2-4, 82152 Planegg-Martinsried, Germany 3 Queen’s University Belfast, School of Biological Sciences, Marine Laboratory, 12-13 The Strand, Portaferry BT22 1PF, UK 4 Department of Marine Ecosystems Dynamics, Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan 5 Senckenberg Research Institute, German Centre for Marine Biodiversity Research (DZMB), Sudstrand¨ 44, 26382 Wilhelmshaven, Germany 6 Museum of New Zealand Te Papa Tongarewa, P.O. Box 467, Wellington, New Zealand Correspondence should be addressed to M. Schrodl;¨
[email protected] Received 1 March 2013; Revised 8 August 2013; Accepted 23 August 2013 Academic Editor: Dietmar Quandt Copyright © 2013 I. Stoger¨ et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Molluscs are a diverse animal phylum with a formidable fossil record. Although there is little doubt about the monophyly of the eight extant classes, relationships between these groups are controversial. We analysed a comprehensive multilocus molecular data set for molluscs, the first to include multiple species from all classes, including five monoplacophorans in both extant families.