English: Jianfengiids, general anatomy. a, b, Fortiforceps foliosa. a, NIGPAS 169948, from Ercaicun. b, CJHMD 00020, from Heimadi. Inset is Fig. 3c. c, Jianfengia multisegmentalis NIGPAS 169957, from Mafang. Superimposed image of two photographs taken at different angles (emphasizing both relief and colouration). Inset is Fig. 4c. d, Sklerolibyon maomima gen. et. sp. nov. NIGPAS 169962, holotype, from Mafang. Inset is Fig. 3d. Arrows in c point to segmental impressions underneath the cephalic shield. All pictures taken in non-polarized light and dry. Scale bars: 1 mm (c, d); 2 mm (a); 5 mm (b)