Figure 6. (1–14) Clarkina liangshanensis (Wang, 1978): (1, 2) Holotype, NIGP45448, from sample Acf 2-83 at Liangshan region in Wang (1978); (3–14)from sample PLTNC-1 at Penglaitan Section, NIGP166080–166085. (15–28) Clarkina guangyuanensis (Dai and Zhang in Li et al., 1989): (15, 16) holotype, DY83028, from sample GSC-11-1 at ShangsiSectioninLietal. (1989);(17–28) from sample QT-120 at Nanjiang Section, NIGP166086–166091.