Figure 5. (1–16) Clarkina asymmetrica Mei and Wardlaw in Mei et al., 1994a: (1, 2) Holotype, NIGP121706, (3, 4) NIGP121704, all from sample L-145 at Dukou Section in Mei et al. (1994a); (5–16) from sample PLTS09 10.36 m at Penglaitan Section, NIGP166068–166073. (17–30) Clarkina leveni (Kozur et al. in Kozur, 1975): (17, 18) holotype, from Achura in Kozur (1975); (19–30) from sample L-156 at Dukou Section, NIGP166074–166079.