Le Moustier 1 Neandertal – The discovery of two new sets of casts, 3D reconstruction and comparison with original fossils

The postcranial skeleton of the Le Moustier 1 Neandertal was severely damaged and burnt at the end of the Second World War. A series of plaster casts were realized on the skeleton before it was destroyed. Five casts are already known to be in existence. This study brings to light two more sets of casts which were recently discovered in Belgium. One set is from the Louis Deroubaix Museum (LDM) and the other set is from the Royal Belgian Institute of Natural Sciences (RBINS). The casts at the LDM were processed by Computed Tomography and three-dimensional models were produced. Measurements were taken both virtually and physically on all available postcranial bones from both LDM and RBINS casts. These measurements were then compared with previously published measurements taken on the original bones and the other available casts. There were no statistical differences between measurements on the original fossils and other existing casts and the physical and digitised casts from LDM and RBINS. The discovery of these new Le Moustier 1 casts is interesting because the original bones of the Neandertal juvenile Le Moustier 1 were destroyed and pre-adolescent Neandertals are not frequently found in the paleoanthropological record. Virtual copies of these casts are now freely available to other researchers and the public.