Type
Zone
Age range
260.3–259.51 Ma
Lopingian
Wuchiapingian
Guadalupian
Capitanian
Clarkina postitteri postitteri
Clarkina postitteri hongshuiensis
Jinogondolella granti
260.3260.3260.2260.1260.1260.1260.0259.9259.9259.9259.8259.8259.7259.6259.6259.6259.5