Quannaogoushan Formation at Angzanggou near Yumen City, W Gansu Province: Wenlock, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
unclassified
|
||||||||||
|
Brachiopoda indet.
Cuvier 1805
|
||||||||||
| "a few un-named brachiopods" | ||||||||||
|
Anthozoa
- Stauriida
- Streptelasmatidae
|
||||||||||
|
Dinophyllum sp.
Lindström 1882
|
||||||||||
|
Anthozoa
- Stauriida
- Entelophyllidae
|
||||||||||
|
Nanshanophyllum typicum
|
||||||||||
|
Nanshanophyllum mirandum
|
||||||||||
|
Anthozoa
- Stauriida
- Kyphophyllidae
|
||||||||||
|
Kyphophyllum qilianshanense
|
||||||||||
|
Anthozoa
- Cystiphyllida
- Tryplasmatidae
|
||||||||||
|
Tryplasma sp.
Lonsdale 1845
|
||||||||||
|
Tryplasma nanshanense
|
||||||||||
|
Anthozoa
- Cystiphyllida
- Cystiphyllidae
|
||||||||||
|
Cystiphyllum sp.
Lonsdale 1839
|
||||||||||
|
Anthozoa
- Favositida
- Favositidae
|
||||||||||
|
Palaeofavosites sinensis
|
||||||||||
| original and current combination Paleofavosites | ||||||||||
|
Mesofavosites sp.
Sokolov 1951
|
||||||||||
|
Favosites forbesi
|
||||||||||
|
Anthozoa
- Favositida
- Multisoleniidae
|
||||||||||
|
Multisolenia tortuosa
Fritz 1937
|
||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Gansu |
| Coordinates: | 39.8° North, 97.7° East (view map) | ||
| Paleocoordinates: | 31.6° South, 104.1° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Wenlock |
| 10 m.y. bin: | Silurian 2 | ||
| Key time interval: | Wenlock | ||
| Age range of interval: | 433.40000 - 427.40000 m.y. ago |
Stratigraphy
| Formation: | Quannaogoushan | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Except where otherwise stated, ref. 7624 uses Lower Silurian as equivalent to Llandovery, Middle Silurian as equivalent to Wenlock, and Upper Silurian as equivalent to Ludlow plus Pridoli. "[Formation] lies conformably on the Angzanggou Formation and below the Hanxia Formation. The beds in the underlying unit are of Upper Llandovery age, and this uit has been referred to the Wenlock by Mu (1962)." | |||||
Lithology and environment
| Primary lithology: | gray,green,red or brown sandy "shale" |
| Secondary lithology: | marl |
| Lithology description: "The formation consists mainly of gray-green and purple, sandy shale, siltstone, and interbedded marl, and limestone, with a thickness of 1098 m. Fossils are abundant, chiefly corals..." | |
| Environment: | marine indet. |
| Geology comments: Correlation chart indicates BA3 based on shelly fauna. | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 27826 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2003-01-14 07:12:02 | Last modified: | 2006-09-13 14:01:03 |
| Access level: | the public | Released: | 2003-01-14 07:12:02 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 7624. | E.-z. Mu, A. J. Boucot, X. Chen and J.-y. Rong. 1986. Correlation of the Silurian rocks of China. In A. J. Boucot and W. B. N. Berry (eds.), Geological Society of America Special Paper 202:1-80 [M. Foote/M. Foote/P. Wagner] |