Wuchiapingian
Geologic period
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In the geologic timescale, the Wuchiapingian or Wujiapingian is an age or stage of the Permian. It is also the lower or earlier of two subdivisions of the Lopingian Epoch or Series. The Wuchiapingian spans the time between 259.51 and 254.14... Wikipedia
Occurred: 259.1 (+/- 0.5) million years ago - 254.14 (+/- 0.07) million years ago
Epoch: Lopingian
Lower boundary GSSP: Penglaitan Section, Laibin, Guangxi, China; 23°41′43″N 109°19′16″E / 23.6953°N 109.3211°E
Lower GSSP ratified: 2004
Regional usage: Global (ICS)
Upper boundary GSSP: FAD of the Conodont Clarkina wangi; 31°04′55″N 119°42′23″E / 31.0819°N 119.7064°E
Upper GSSP ratified: 2005