ACKNOWLEDGMENTS

Special thanks go to M.R. Sánchez-Villagra for supporting this research and for discussion. In addition, I thank M. Delfino, S.E. Evans, J. Gapany, E. Heiss, M.E.H. Jones, W. Joyce, S.T. Hertwig, J.M. Hoyos, N.N. Iordansky, D. Koyabu, S. Kuratani, W. Maier, H. Mallison, C. Mitgutsch, J. Müller, N. Natchev, L. Olsson, T.M. Scheyer, G.H. Schumacher, H. Werneburg, L.A.B. Wilson, J.M. Ziermann, and one anonymous reviewer for discussion, useful comments to the manuscript, and/or for providing specimens, or for organising rare literature. With kind permission of C.P.E. Zollikofer, Claude Monnet advised me preparing micro-CT-scans. Special thanks go to M.E.H. Jones et al. (unpublished data); our observations on the feeding muscle anatomy of Caretta caretta and Lepidochelys kempi had influence to the discussion of the here presented work. The study was supported by Swiss National Science Foundation (No. 3100A0-116013 and No. 31003A_133032/1: granted to MRS-V), by Deutsche Forschungsgemeinschaft (No. JO 928/1-1: granted to WJ), by a Forschungskredit der Universität Zürich (No. 3772: granted to IW), and by a fund of the Japanese Society for the Promotion of Science (No. PE 11027: granted to IW).