Unit 27, Yanheganxi and Yanhe: Llanvirn, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Protocycloceroides sp.
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Cephalopoda
- Lituitida
- Sinoceratidae
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Rhynchorthoceras sp.
Remelé 1882
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Michelinoceras sp.
Foerste 1932
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Cephalopoda
- Endocerida
- Endoceratidae
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Dideroceras sp.
Flower 1950
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Rhynchonellata
- Pentamerida
- Clarkellidae
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Yangtzeella sp.
Kolarova 1925
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Rhynchonellata
- Orthida
- Orthidae
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Sinorthis sp.
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus sp.
Dalman 1827
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| see common names | |||||||
Geography
| Country: | China | State/province: | Guizhou |
| Coordinates: | 29.0° North, 109.0° East (view map) | ||
| Paleocoordinates: | 13.8° North, 134.3° East | ||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| 10 m.y. bin: | Ordovician 2-3 | ||
| *Period: | Middle Ordovician | *Epoch: | Llanvirn |
| Key time interval: | Llanvirn | ||
| Age range of interval: | 468.40000 - 458.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Fengdonggang |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | black,gray lithified "limestone" |
| Environment: | deep subtidal shelf |
| Geology comments: Blackish to dark gray medium to thick limestone | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Also known as: | Unit 27, Fengdonggan Fm., Yanheganxi and Yanhe, Guizhou Prov., China | ||
| Database number: | 4753 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 1999-08-18 20:05:32 | Last modified: | 2018-05-14 00:12:00 |
| Access level: | the public | Released: | 1999-08-18 20:05:32 |
| 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] |