Dear all, we have in our collection some arrowheads made of what we believe to be freshwater pearl mussels (/Margaritifera margaritifera/) and are looking for other similar findings. Does anyone know of or have any litterature on mollusc projectile points? We are particularely interested in freshwater mussels, but information on any type of molluscs are very welcome. Thanks in advance, Jørgen -- Jørgen Rosvold PhD-candiate http://www.ntnu.edu/employees/jorgen.rosvold Museum of Natural History and Archaeology Section of Natural History Norwegian University of Science and Technology (NTNU) Office: +47 73592287 Mobile: +47 95279789 Adress: NTNU, Museum of Archaeology and Natural History Section of Natural History NO-7491 Trondheim Norway