Food plant remains from GBY. (A) Quercus sp., young cupule (layer II-6 L1); (B) T. natans, upper tip of nut (layer III-7); (C) Nuphar luteum, seed (layer II-7); (D) B. umbellatus, seed (layer III-4); (E) Scirpus lacustris, seed (layer II-9); and (F) Vitis sylvestris, pip (layer IV-7).