Guadalupian | |||||||||||||
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![]() Map of Earth as it appeared 260 million years ago during the Guadalupian epoch, Capitanian stage | |||||||||||||
Chronology | |||||||||||||
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Etymology | |||||||||||||
Name formality | Formal | ||||||||||||
Name ratified | 1996 | ||||||||||||
Usage information | |||||||||||||
Celestial body | Earth | ||||||||||||
Regional usage | Global (ICS) | ||||||||||||
Time scale(s) used | ICS Time Scale | ||||||||||||
Definition | |||||||||||||
Chronological unit | Epoch | ||||||||||||
Stratigraphic unit | Series | ||||||||||||
Time span formality | Formal | ||||||||||||
Lower boundary definition | FAD of the Conodont Jinogondolella nanginkensis | ||||||||||||
Lower boundary GSSP | Stratotype Canyon, Guadalupe Mountains, Texas, USA 31°52′36″N 104°52′36″W / 31.8767°N 104.8768°W | ||||||||||||
Lower GSSP ratified | 2001[2] | ||||||||||||
Upper boundary definition | FAD of the Conodont Clarkina postbitteri postbitteri | ||||||||||||
Upper boundary GSSP | Penglaitan Section, Laibin, Guangxi, China 23°41′43″N 109°19′16″E / 23.6953°N 109.3211°E | ||||||||||||
Upper GSSP ratified | 2004[3] |
The Guadalupian is the second and middle series/epoch of the Permian. The Guadalupian was preceded by the Cisuralian and followed by the Lopingian. It is named after the Guadalupe Mountains of New Mexico and Texas, and dates between 272.95 ± 0.5 – 259.1 ± 0.4 Mya.[4][5] The series saw the rise of the therapsids, a minor extinction event called Olson's Extinction and a significant mass extinction called the end-Capitanian extinction event. The Guadalupian was previously known as the Middle Permian.