WuLan-YanChiWan: Caradoc, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Pterobranchia
- Graptoloidea
- Dicranograptidae
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Dicranograptus sp.
(Hall 1865)
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| original and current combination Climacograptus (Dicranograptus) | |||||||
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Trilobita
- Asaphida
- Cyclopygidae
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Cyclopyge sp.
Hawle and Corda 1847
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Trilobita
- Asaphida
- Remopleurididae
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Remopleurides sp.
Portlock 1843
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Trilobita
- Trinucleida
- Raphiophoridae
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Ampyx sp.
(Dalman 1827)
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| original and current combination Asaphus (Ampyx) | |||||||
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Lonchodomas sp.
Angelin 1854
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Cephalopoda
- Orthocerida
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Cycloceras sp.
M'Coy 1844
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Cephalopoda
- Tarphycerida
- Trocholitidae
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Discoceras sp.
Barrande 1867
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| see common names | |||||||
Geography
| Country: | China | State/province: | QingHai |
| Coordinates: | 37.0° North, 98.0° East (view map) | ||
| Paleocoordinates: | 30.9° South, 130.8° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| *Period: | Late/Upper Ordovician | *Epoch: | Early/Lower Caradoc |
| Key time interval: | Caradoc | ||
| Age range of interval: | 458.40000 - 449.60000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Yanchiwan | ||||
| Stratigraphy comments: Thickness of YanChiWan Group is 1530 m; this group is overlain by the Yan Gou Group | |||||
Lithology and environment
| Primary lithology: | pebbly lithified sandstone |
| Secondary lithology: | metamorphosed silty,calcareous slate |
| Lithology description: Gravel, sandstone, slate interbedded with some fine sandstone and limestone | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | species names |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Also known as: | Yan Chi Wan Group, WuLan-YanChiWan, QingHai Province, China | ||
| Database number: | 23595 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-07-17 11:37:07 | Last modified: | 2021-04-06 18:34:31 |
| Access level: | the public | Released: | 2002-07-17 11:37:07 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 3864. | Stratigraphic Group of GanSu, QingHai, and Tibet Provinces. 1980. Regional Stratigraphic Table of China: Gansu, Qinghai, and Tibet Provinces [A. Miller/P. Novack-Gottshall/M. Clapham] |