AFI 4018. Chenjiahe section: Darriwilian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Billingsellida
- Polytoechiidae
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Tritoechia mina
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1 specimen | |||||||||
| 0:0:1:0:0:0:0 | ||||||||||
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Martellia ichangensis
Wang 1956
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3 specimens | |||||||||
| 1:2:2:0:0:0:0 | ||||||||||
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Rhynchonellata
- Orthida
- Archaeorthidae
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Nothorthis perplexa
Xu and Liu 1984
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3 specimens | |||||||||
| 0:1:0:2:0:2:0 | ||||||||||
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Rhynchonellata
- Orthida
- Glyptorthidae
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Lepidorthis typicalis
Wang 1955
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3 specimens | |||||||||
| 0:1:1:0:0:0:2 | ||||||||||
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Rhynchonellata
- Pentamerida
- Clarkellidae
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Yangtzeella poloi
(Martelli 1901)
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19 specimens | |||||||||
| recombined as Yangtzeella (Yangtzeella) poloi | ||||||||||
| 1:18:7:0:0:0:0 | ||||||||||
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Rhynchonellata
- Protorthida
- Skenidiidae
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Protoskenidioides huanghuaensis
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18 specimens | |||||||||
| 0:5:7:11:5:8:12 | ||||||||||
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Lingulata
- Lingulida
- Obolidae
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Palaeoglossa sp.
Cockerell 1911
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1 specimen | |||||||||
| 0:0:0:0:0:1:0 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Hubei | County: | Yichang |
| Coordinates: | 30.9° North, 111.4° East (view map) | ||||
| Paleocoordinates: | 11.0° North, 134.8° East | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| Stage: | Darriwilian | 10 m.y. bin: | Ordovician 3 |
| Key time interval: | Darriwilian | Graptolite zone: | Undulograptus austrodentatus |
| Age range of interval: | 467.3 - 458.4 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | nodular calcareous mudstone |
| Secondary lithology: | "limestone" |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 186130 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2017-06-15 10:15:43 | Last modified: | 2018-04-26 23:21:44 |
| Access level: | the public | Released: | 2017-06-15 10:15:43 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 62451. | R. Zhan, J. Jin, and P. Chen. 2007. Brachiopod diversification during the Early–Mid Ordovician: an example from the Dawan Formation, Yichang area, central China. Canadian Journal of Earth Sciences 44:9-24 [P. Wagner/P. Wagner] |