1. National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, CA 93101, USA.
2. Museum für Naturkunde, Humboldt-Universität, 10115 Berlin, Germany.
3. Institut für Palaöntologie, Universität Würzburg, 97070 Würzburg, Germany.
4. School of Marine Biology and Aquaculture, James Cook University, Townsville 4811, Australia.
5. Department of Geology, Field Museum of Natural History, Chicago, IL 60605, USA.