Back المرحلة 10 (الكمبري) Arabic Камбрий етаж 10 Bulgarian Piso 10 (Cámbrico) Spanish اشکوب ۱۰ کامبرین FA Étage 10 (époque) French Kambrium Tahap 10 ID カンブリア紀第十期 Japanese 寒武纪第十期 Chinese
| Cambrian Stage 10 | ||||||||||||||||||||||||||||||||||||||
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| Chronology | ||||||||||||||||||||||||||||||||||||||
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| Etymology | ||||||||||||||||||||||||||||||||||||||
| Name formality | Informal | |||||||||||||||||||||||||||||||||||||
| 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 | Not formally defined | |||||||||||||||||||||||||||||||||||||
| Lower boundary definition candidates | FAD of the Trilobite Lotagnostus americanus | |||||||||||||||||||||||||||||||||||||
| Lower boundary GSSP candidate section(s) | Duibian, Zhejiang, China | |||||||||||||||||||||||||||||||||||||
| Upper boundary definition | FAD of the Conodont Iapetognathus fluctivagus. | |||||||||||||||||||||||||||||||||||||
| Upper boundary GSSP | Greenpoint section, Green Point, Newfoundland, Canada 49°40′58″N 57°57′55″W / 49.6829°N 57.9653°W | |||||||||||||||||||||||||||||||||||||
| Upper GSSP ratified | 2000[2] | |||||||||||||||||||||||||||||||||||||
Stage 10 of the Cambrian is the still unnamed third and final stage of the Furongian series. It follows the Jiangshanian and precedes the Ordovician Tremadocian Stage.[3] The proposed lower boundary is the first appearance of the trilobite Lotagnostus americanus around 489.5 million years ago, but other fossils are also being discussed (see below). The upper boundary is defined as the appearance of the conodont Iapetognathus fluctivagus which marks the beginning of the Tremadocian and is radiometrically dated as 485.4 million years ago.[4]
- ^ "Chart/Time Scale". stratigraphy.org. International Commission on Stratigraphy.
- ^ Cooper, Roger; Nowlan, Godfrey; Williams, S. H. (March 2001). "Global Stratotype Section and Point for base of the Ordovician System" (PDF). Episodes. 24 (1): 19–28. doi:10.18814/epiiugs/2001/v24i1/005. Retrieved 6 December 2020.
- ^ Cite error: The named reference
Strat Chart 2012was invoked but never defined (see the help page). - ^ "GSSP Table - Paleozoic Era". Geologic Timescale Foundation. Retrieved 17 November 2012.