1. Department of Zoology, Faculty of Science, Charles University, Praha, Czech Republic
2. Institut de Systématique, Évolution, Biodiversité, ISYEB – UMR 7205 – CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, Paris, France
3. Joggins Fossil Institute, Joggins, Nova Scotia, Canada
4. Senckenberg Gesellschaft für Naturforschung, Frankfurt, Germany