Changhsingian
| Changhsingian | |||||||||||||
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Bellerophon Formation, Dolomites, Italy | |||||||||||||
| Chronology | |||||||||||||
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| Etymology | |||||||||||||
| Name formality | Formal | ||||||||||||
| Name ratified | 1981 | ||||||||||||
| Alternate spelling(s) | Changxingian | ||||||||||||
| Usage information | |||||||||||||
| Celestial body | Earth | ||||||||||||
| Regional usage | Global (ICS) | ||||||||||||
| Time scale(s) used | ICS Time Scale | ||||||||||||
| Definition | |||||||||||||
| Chronological unit | Age | ||||||||||||
| Stratigraphic unit | Stage | ||||||||||||
| Time span formality | Formal | ||||||||||||
| Lower boundary definition | FAD of the Conodont Clarkina wangi | ||||||||||||
| Lower boundary GSSP | Meishan, Zhejiang, China 31°04′55″N 119°42′23″E / 31.0819°N 119.7064°E | ||||||||||||
| Lower GSSP ratified | 2005 | ||||||||||||
| Upper boundary definition | FAD of the Conodont Hindeodus parvus. | ||||||||||||
| Upper boundary GSSP | Meishan, Zhejiang, China 31°04′47″N 119°42′21″E / 31.0798°N 119.7058°E | ||||||||||||
| Upper GSSP ratified | 2001 | ||||||||||||
In the geologic time scale, the Changhsingian or Changxingian is the latest age or uppermost stage of the Permian period and the Paleozoic era as a whole. It is also the upper or latest of two subdivisions of the Lopingian Epoch or Series. The Changhsingian lasted from 254.14 to 251.902 Ma ago. It is preceded by the Wuchiapingian age/stage and is followed by the Induan age/stage (Early Triassic epoch).
The greatest mass extinction in the Phanerozoic eon, the Permian–Triassic extinction event, occurred around the end of this age.