We thank the Musée d'Histoire Naturelle de Nice in enabling us to access the Faure-Muret Collection. R.C. and S.F. gratefully acknowledge the support of the Italian Research Programmes of National Interest (P.R.I.N. Cofin 2004: “Evolution of gondwanian and perigondwanian terranes in the Variscides of Western-Central Alps and Sardinia-Corsica Massif”, Scientific Project Coordinator L. Cortesogno).