Wuchiapingian
Eighth stage of the Permian
title: "Wuchiapingian" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["wuchiapingian", "permian-geochronology", "permian-china", "lopingian", "hanzhong", "paleontology-in-shaanxi", "permian-asia"] description: "Eighth stage of the Permian" topic_path: "science/earth-science" source: "https://en.wikipedia.org/wiki/Wuchiapingian" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Eighth stage of the Permian ::
::data[format=table title="Infobox geologic timespan"]
| Field | Value |
|---|---|
| name | Wuchiapingian |
| color | Wuchiapingian |
| time_start | 259.51 |
| time_start_uncertainty | 0.21 |
| time_end | 254.14 |
| time_end_uncertainty | 0.07 |
| image_outcrop | Kamsdorf section.jpg |
| caption_outcrop | Wuchiapingian aged stratigraphic succession including the Kupferschiefer, Kamsdorf mine near Saalfeld, Thuringia, Germany |
| timeline | Permian |
| name_formality | Formal |
| celestial_body | earth |
| usage | Global (ICS) |
| timescales_used | ICS Time Scale |
| chrono_unit | Age |
| strat_unit | Stage |
| timespan_formality | Formal |
| lower_boundary_def | FAD of the Conodont Clarkina postbitteri postbitteri |
| lower_gssp_location | Penglaitan Section, Laibin, Guangxi, China |
| lower_gssp_coords | |
| lower_gssp_accept_date | 2004 |
| upper_boundary_def | Meishan, Zhejiang, China |
| upper_gssp_location | FAD of the Conodont Clarkina wangi |
| upper_gssp_coords | |
| upper_gssp_accept_date | 2005 |
| :: |
| name = Wuchiapingian | color = Wuchiapingian | time_start = 259.51 | time_start_uncertainty = 0.21 | time_end = 254.14 | time_end_uncertainty = 0.07 | image_map = | caption_map = | image_outcrop = Kamsdorf section.jpg | caption_outcrop = Wuchiapingian aged stratigraphic succession including the Kupferschiefer, Kamsdorf mine near Saalfeld, Thuringia, Germany | image_art = | caption_art = | timeline = Permian | formerly_part_of = | partially_contained_in = | partially_contains = | name_formality = Formal | name_accept_date = | alternate_spellings = | synonym1 = | synonym1_coined = | synonym2 = | synonym2_coined = | synonym3 = | synonym3_coined = | nicknames = | former_names = | proposed_names = | celestial_body = earth | usage = Global (ICS) | timescales_used = ICS Time Scale | formerly_used_by = | not_used_by = | chrono_unit = Age | strat_unit = Stage | proposed_by = | type_section = | timespan_formality = Formal | lower_boundary_def = FAD of the Conodont Clarkina postbitteri postbitteri | lower_gssp_location = Penglaitan Section, Laibin, Guangxi, China | lower_gssp_coords = | lower_gssp_accept_date = 2004 | upper_boundary_def = Meishan, Zhejiang, China | upper_gssp_location = FAD of the Conodont Clarkina wangi | upper_gssp_coords = | upper_gssp_accept_date = 2005 | o2 = | co2 = | temp = | sea_level =
In the geologic timescale, the Wuchiapingian or Wujiapingian (from in the Liangshan area of Hanzhong, Shaanxi Province ) 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 and million years ago (Ma). It was preceded by the Capitanian and followed by the Changhsingian.
Regional stages with which the Wuchiapingian is coeval or overlaps include the Djulfian or Dzhulfian, Longtanian, Rustlerian, Saladoan, and Castilian.
Stratigraphic definitions
The Wuchiapingian was first used in 1962, when the Lopingian Series of southwestern China was divided in the Changhsingian and Wuchiapingian Formations. In 1973 the Wuchiapingian was first used as a chronostratigraphic unit (i.e. a stage, as opposed to a formation, which is a lithostratigraphic unit).
The base of the Wuchiapingian Stage is defined as the place in the stratigraphic record where the conodont species Clarkina postbitteri postbitteri first appears. A global reference profile for this boundary (a GSSP) is located near Laibin in the Chinese province of Guangxi.
The top of the Wuchiapingian (the base of the Changhsingian) is at the first appearance of conodont species Clarkina wangi.
The Wuchiapingian contains two ammonoid biozones: that of the genus Araxoceras and that of the genera Roadoceras and Doulingoceras.
Wuchiapingian life
Main article: :Category:Wuchiapingian life
An extinction pulse occurred during the Wuchiapingian; faunas were recovering when another larger extinction pulse, the Permian–Triassic extinction event devastated life.
A relatively diverse fish fauna is known from the coeval Kupferschiefer (Werra Formation, Germany), Marl Slate Formation (England) and Ravnefjeld Formation (Greenland), including, among others, the following genera: Acentrophorus, Acropholis, Boreolepis, Coelacanthus, Dorypterus, Janassa, Menaspis, Palaeoniscum, Platysomus, Pygopterus and Wodnika. The Hambast Formation of Iran yielded chondrichthyan faunas of Wuchiapingian to Changhsingian age. The Wuchiapingian layers produced teeth of the eugeneodontid Bobbodus.
Notable formations
- Hambast Formation (Iran)
- Marl Slate Formation (England)
- Naobaogou Formation (Inner Mongolia, China)
- Ravnefjeld Formation (Greenland)
- Sunjiagou Formation (Shanxi, China)
- Tropidostoma Assemblage Zone* (South Africa)
- Werra Formation (Kupferschiefer, Germany)
References
References
- (December 2006). "The Global Stratotype Section and Point (GSSP) for the boundary between the Capitanian and Wuchiapingian Stage (Permian)". Episodes.
- (September 2006). "The Global Boundary Stratotype Section and Point (GSSP) for the base of Changhsingian Stage (Upper Permian)". Episodes.
- "陕西汉中梁山吴家坪灰岩的再研究 (Restudies on the Wujiaping Limestone Liangshan of Hanzhong, Shaanxi)".
- (2004). "A Geologic Time Scale 2004". Cambridge University Press.
- "Wuchiapingian". GeoWhen Database, [[International Commission on Stratigraphy.
- (1973). "The Permian and Triassic Systems and their mutual boundary".
- (2008). "Recovery from the most profound mass extinction of all time". Proceedings of the Royal Society B: Biological Sciences.
- Schaumberg, Günther. (1977). "Die Richelsdorfer Kupferschiefer und seine Fossilien, III". Aufschluss.
- (February 2016). "Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution". Biological Reviews.
- (2013). "A first Late Permian fish fauna from Baghuk Mountain (Neo-Tethyan shelf, central Iran)". Bulletin of Geosciences.
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