Earth:Paibian
| Paibian | |
|---|---|
| ~497 – ~494 Ma | |
| Chronology | |
Cambrian graphical timeline -540 — – -535 — – -530 — – -525 — – -520 — – -515 — – -510 — – -505 — – -500 — – -495 — – -490 — – -485 — – Major Glacial period | |
| Etymology | |
| Name formality | Formal |
| Name ratified | 2003[2] |
| Former name(s) | Cambrian Stage 8 |
| Usage information | |
| Celestial body | Earth |
| Regional usage | Global (ICS) |
| Time scale(s) used | ICS Time Scale |
| Definition | |
| Chronological unit | Age |
| Stratigraphic unit | Stage |
| First proposed by | Shanchi et al., 2002[3] |
| Time span formality | Formal |
| Lower boundary definition | FAD of the Trilobite Glyptagnostus reticulatus |
| Lower boundary GSSP | Paibi section, Paibi, Hunan, China [ ⚑ ] 28°23′22″N 109°31′33″E / 28.3895°N 109.5257°E |
| GSSP ratified | 2003[2] |
| Upper boundary definition | FAD of the Trilobite Agnostotes orientalis |
| Upper boundary GSSP | Duibian B Section, Duibian, Zhejiang, China [ ⚑ ] 28°48′57″N 118°36′54″E / 28.815967°N 118.614933°E |
| GSSP ratified | 2011[4] |
[ ⚑ ] 28°23′22″N 109°31′33″E / 28.3895°N 109.5257°E The Paibian is the lowest stage of Furongian series of the Cambrian. It follows the Guzhangian (3rd series of the Cambrian) and is succeeded by the Jiangshanian Stage. The base is defined as the first appearance of the trilobite Glyptagnostus reticulatus around 497 million years ago. The top, or the base of the Jiangshanian is defined as the first appearance of the trilobite Agnostotes orientalis around 494 million years ago.
The name is derived from Paibi, a village in Hunan, China. The GSSP is defined in the "Paibi section" (Wuling Mountains, Huayuan County), an outcrop of the Huaqiao Formation(花桥组). The base is the first occurrence of Glyptagnostus reticulatus which is 396 m above the base of the Huaqiao Formation at the type locality ( [ ⚑ ] 28°23′22″N 109°31′33″E / 28.3895°N 109.5257°E).[5]
References
- ↑ "Chart/Time Scale". International Commission on Stratigraphy. http://www.stratigraphy.org/index.php/ics-chart-timescale.
- ↑ 2.0 2.1 Peng, S. C.; Babcock, L. E.; Robison, R. A.; Lin, H. L.; Rees, M. N.; Saltzman, M. R. (2004). "Global Standard Stratotype-Section and Point (GSSP) of the Furongian Series and Paibian Stage (Cambrian)". Lethaia 37 (4): 365–379. doi:10.1080/00241160410002081. http://www.palaeontology.geo.uu.se/ISCS/ISCS_GSSPs.html. Retrieved 8 December 2020.
- ↑ Shanchi, Peng; Babcock, Loren; Robinson, Richard; Huanling, Lin; Rees, Margaret; Saltzman, Matthew. "PROPOSED GLOBAL STANDARD STRATOTYPE-SECTION AND POINT FOR THE PAIBIAN STAGE AND FURONGIAN SERIES (UPPER CAMBRIAN)". http://www.palaeontology.geo.uu.se/ISCS/ISCS_GSSPs.html.
- ↑ Peng, Shanchi; Babcock, Loren; Zuo, Jingxun; Lin, Huanling; Yang, Xianfeng; Qi, Yuping; Bagnoli, Gabriella; Wang, Longwu (December 2012). "Global Standard Stratotype-Section and Point (GSSP) for the Base of the Jiangshanian Stage (Cambrian: Furongian) at Duibian, Jiangshan, Zhejiang, Southeast China". Episodes 35 (4): 462–477. doi:10.18814/epiiugs/2012/v35i4/002. https://www.researchgate.net/publication/282579230. Retrieved 13 December 2020.
- ↑ "GSSP for the Paibian". https://engineering.purdue.edu/Stratigraphy/gssp/paibian.htm.
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