1. Sorbonne Universités - CR2P - MNHN, CNRS, UPMC-Paris6; Paris France
2. Department of Bioagricultural Sciences and Pest Management; Colorado State University; Fort Collins CO U.S.A.
3. Department of Palaeontology; University of Vienna; Vienna Austria
4. Icelandic Institute of Natural History; Garðabaer Iceland
5. Section Palaeontology; Steinmann Institute, University of Bonn; Bonn Germany