| Stage |
Age (Ma) CGTS 2008 |
GSSP Location |
Latitude, Longitude |
Boundary Level |
Correlation Events |
Status |
Reference |
| Permian System |
| Lopingian Series |
| Changhsingian Stage |
PTB=251.902±0.024, WCB=254.14±0.07Ma |
Meishan D, Zhejiang Province, China |
31.0819°N 119.7064°E |
base of Bed 4a-2, 88 cm above the base of the Changxing Limestone at the Meishan D Section |
FAD of Clarkina wangi |
Ratified 2005 |
Episodes 29/3, p. 175-182, 2006 |
| Wuchiapingian Stage |
259.51 ± 0.21 |
Penglaitan, Guangxi Province, South China |
23.6953°N 109.3211°E |
base of Bed n6L in the newly exposed Penglaitan section |
FAD of Clarkina postbitteri |
Ratified 2004, redefinition ratified 2023 |
Episodes 29/4, p. 253-262, 2006;
Episodes, in press |
| Guadalupian Series |
| Capitanian Stage |
264.28 ± 0.16 |
Nipple Hill, SE Guadalupe Mountains, Texas, U.S.A |
31.9091°N 104.7892°W |
4.5m above the base of the outcrop section of the Pinery Limestone Member of the Bell Canyon Formation |
FAD of Jinogondolella postserrata |
Ratified 2001 |
Permophiles 34 p. 3-11, 1999;
Episodes 45, p. 309-331, 2022 |
| Wordian Stage |
266.9± 0.4 |
Guadalupe Pass, Texas, U.S.A |
31.8658°N 104.8328°W |
7.6m above the base of the Getaway Ledge outcrop Section of the Getaway Limestone Member of the Cherry Canyon Formation |
FAD of Jinogondolella aserrata |
Ratified 2001 |
Permophiles 34 p. 3-11, 1999;
Wu et al., 2020, Palaeogeography, Palaeoclimatology, Palaeoecology |
| Roadian Stage |
273.01 ± 0.14 |
Stratotype Canyon, Texas, U.S.A |
31.8767°N 104.8768°W |
42.7m above the base of the Cutoff Formation |
Conodont FAD Jinogondolella nankingensis |
Ratified 2001 |
Permophiles 34 p. 3-11, 1999;
Shen et al., 2020, Earth-Science Reviews |
| Cisuralian Series |
| Kungurian Stage |
283.5± 0.6 |
Candidate is Rockland, Nevada |
|
|
|
Anticipated 2024 |
|
| Artinskian Stage |
290.5± 0.4 |
Dalny Tulkas in Southern Ural Mts, Russia. |
53.88847°N 56.51615°E |
0.6m above the base of bed 4b at the Dal’ny Tulkas section in the southern Urals of Russia |
FAD of the conodont Sweetognathus asymmetricus |
Ratified 2022 |
Episodes Published online June 15, 2023 |
| Sakmarian Stage |
293.52± 0.17 |
Usolka, Southern Ural Mts, Russia. |
53.9247°N, 56.7287°E |
Bed 26/3 |
Conodont FAD Mesogondolella monstra |
Ratified 2018 |
Episodes 43/4, p. 961-979, 2020 |
| Asselian Stage |
298.9 ± 0.15 |
Aidaralash Creek, Kazakhstan |
50.2458°N 57.8914°E |
27m above the base of Bed 19, Aidaralash Creek |
Conodont FAD of Streptognathodus isolatus |
Ratified 1996 |
Episodes 21/1, p. 11-18, 1998 |
