1. Institute of Earth Sciences, Pole of the Faculty of Sciences, University of Porto, Porto, Portugal
2. Geosciences Center, University of Coimbra, Coimbra, Portugal
3. Czech Geological Survey, Klarov, Czech Republic
4. Department of Natural Sciences, National Museum Wales, Cardiff, UK
5. Conservation Paléontologie et Paléobotanique, Muséum d‘Histoire Naturelle de Grenoble, Grenoble, France
6. Department of Earth Sciences of the Faculty of Sciences and Technology, University of Nova de Lisboa, Caparica, Portugal
7. Department of Geology, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal