Units 1 to 4, Dawan Fm., Yangjiaba, Chengkou County, Sichuan Prov., China: Arenig, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Changyangoceras sp.
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Pterobranchia
- Graptoloidea
- Dichograptidae
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Didymograptus sp.
McCoy 1851
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Azygograptus sp.
Nicholson and Lapworth 1875
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Pterobranchia
- Graptoloidea
- Phyllograptidae
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Phyllograptus sp.
Hall 1858
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Cephalopoda
- Ellesmerocerida
- Protocycloceratidae
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Protocycloceras sp.
Hyatt 1900
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Cephalopoda
- Endocerida
- Endoceratidae
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Chisiloceras sp.
Gortani 1934
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Rhynchonellata
- Orthida
- Orthidae
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Sinorthis sp.
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Trilobita
- Asaphida
- Asaphidae
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Psilocephalina sp.
Hsu 1948
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Megalaspides sp.
Brögger 1886
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Trilobita
- Asaphida
- Taihungshaniidae
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Taihungshania sp.
Sun 1931
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Trilobita
- Trinucleida
- Trinucleidae
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Ningkianolithus sp.
Lu 1954
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Hanchungolithus sp.
Lu 1956
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Trilobita
- Phacopida
- Calymenidae
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Neseuretus sp.
Hicks 1873
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| see common names | |||||||
Geography
| Country: | China | State/province: | Sichuan | County: | Chengkou |
| Coordinates: | 32.0° North, 108.0° East (view map) | ||||
| Paleocoordinates: | 15.5° North, 141.5° East | ||||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | ||
| 10 m.y. bin: | Ordovician 2 | ||
| *Period: | Early/Lower Ordovician | *Epoch: | Early/Lower Arenig |
| *International age/stage: | Early/Lower Arenig | ||
| Key time interval: | Arenig | ||
| Age range of interval: | 477.70000 - 468.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Lithology and environment
| Primary lithology: | lithified silty "shale" |
| Secondary lithology: | "limestone" |
| Lithology description: shale, limestone and siltstone | |
| Environment: | shallow subtidal indet. |
Taphonomy
Collection methods and comments
| Collection excludes: | species names |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 7649 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 2000-05-30 12:10:33 | Last modified: | 2001-08-16 13:10:39 |
| Access level: | the public | Released: | 2000-11-20 13:53:34 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 485. | Sichuan Stratigraphic Work Group. 1978. Regional stratigraphic table of the southwestern region of China, Sichuan part. Geological Publishing House, Beijing, China [A. Miller/P. Novack-Gottshall] |