A wound dressing and a method for production thereof. The wound dressing includes a collagen-containing sheet-like structure, which is made of magnesium or a magnesium alloy. The sheet-like structure has openings and is embedded in a collagen-containing sheet-like structure. The wound dressing is embodied as a geometrically stable bioresorbable membrane and includes a support made of a collagen membrane, on which the collagen-containing sheet-like structure is arranged.