1. Institute for Biochemistry and Biology; University of Potsdam; 14476 Potsdam OT Golm Germany
2. Department of Biology and Evolution; University of Ferrara; I-44121 Ferrara Italy
3. Instituto Universitario de Xeoloxía; Universidade da Coruña; 15081 A Coruña Spain
4. School of Archaeology and Earth Institute; University College Dublin; Dublin 4 Ireland
5. “Emil Racoviță” Institute of Speleology; 050711 Bucharest Romania
6. c/o J. Villarías Instituto de Historia, Consejo Superior de Investigaciones Científicas; 28037 Madrid Spain
7. Depto. de Ingeniería Geológica y Minera; Universidad Politécnica de Madrid; 28003 Madrid Spain
8. Institute of Palaeontology; University of Vienna; A-1090 Vienna Austria
9. Department of Biology; The University of York; York YO10 5DD UK