Unit 3, Tongzhi Fm., Honghuayuan and Tongzhi, Guizhou Prov., China: Tremadoc, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Eocrinoidea
- Imbricata
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Imbricata indet.
Sprinkle 1973
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Trilobita
- Asaphida
- Asaphidae
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Psilocephalina sp.
Hsu 1948
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Asaphellus sp.
Callaway 1877
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| see common names | |||||||
Geography
| Country: | China | State/province: | Guizhou |
| Coordinates: | 28.0° North, 107.0° East (view map) | ||
| Paleocoordinates: | 21.4° North, 143.4° East | ||
| Geographic resolution: | local area |
Time
| 10 m.y. bin: | Cambrian-Ordovician | ||
| *Period: | Early/Lower Ordovician | *Epoch: | Early/Lower Tremadoc |
| *International age/stage: | Early/Lower Tremadoc | ||
| Key time interval: | Tremadoc | ||
| Age range of interval: | 485.00000 - 477.70000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Lithology and environment
| Primary lithology: | lithified argillaceous "limestone" |
| Secondary lithology: | mudstone |
| Lithology description: muddy limestone and shale | |
| Environment: | deep subtidal shelf |
Taphonomy
Collection methods and comments
| Collection excludes: | species names |
Metadata
| Database number: | 5282 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 1999-09-12 18:10:28 | Last modified: | 1999-09-12 21:10:28 |
| Access level: | the public | Released: | 2000-11-20 13:53:25 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 288. | R. Wang. 1981. Stratigraphic Summary of the Southwestern Region of China. Institute of Geology and Mine Deposit at Chengdu, Ministry of Geology (not published, copy of article deposited with A. I. Miller at the University of Cincinnati, received through S. Mao) 14-61 [A. Miller/P. Novack-Gottshall] |