1. Palaeocast; 31 St. Wilfrid's Street Manchester M15 5XE UK
2. Paleontological Institute and Department of Geology; University of Kansas; Lawrence Kansas USA
3. Laboratory of Arthropods; Borissyak Palaeontological Institute of Russian Academy of Science; Profsoyuznaya Street, 123 117997 Moscow
4. Department of Earth Sciences; University of Bristol; Wills Memorial Building Queen's Road Bristol BS8 1RJ UK