Mollusc Shell Sizes in Archaeological Contexts in Northern Spain (13 200 to 2600 cal BC) : New Data from La Garma A and Los Gitanos (Cantabria). - Álvarez Fernández, Esteban; Chauvin Grandela, Adriana; Cubas, Miriam (Oxford University, Research Laboratory for Archaeology and the History of Art, 2011)