1. Department of Geosciences, University of Tübingen, Hölderlinstraße 12, 72074 Tübingen, Germany;
2. Palaeontological Institute and Museum, University of Zürich, Karl-Schmid-Strasse 4, 8006 Zürich, Switzerland;
3. Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands
4. ZOIC PalaeoTech, Longburton, Sherborne, Dorset, U.K.;
5. Faculty of Geology and Geophysics, University of Bucharest, 1 Nicolae Bălcescu Avenue, 010041 Bucharest, Romania;