1. GeoBio-Center, Ludwig-Maximilians-Universität München , Richard-Wagner Straße 10, 80333 Munich , Germany
2. Department of Earth and Environmental Sciences, Paleontology & Geobiology, Ludwig-Maximilians-Universität München , Richard-Wagner Straße 10, 80333 Munich , Germany
3. Center for Bioinformatics and Computational Biology, University of Maryland , College Park, MD 20742 , USA