1. Department of Earth Science and Engineering; Imperial College London; South Kensington Campus London SW7 2AZ UK
2. Museum für Naturkunde; Invalidenstrasse 43 10115 Berlin Germany
3. Department of Earth Sciences; UCL; University College London; Gower Street London WC1E 6BT UK
4. Department of Earth Sciences (CICEGE-FCT); Universidade Nova da Lisboa; 2829-516 Monte de Caparica Portugal
5. Museu da Lourinhã; Rua João Luís de Moura; 2530-157 Lourinhã Portugal