Upper Limestone of Pailungchiang Fm. at Baiyikou, Zoge County, NW Sichuan Prov.: Ludlow, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa
- Heliolitida
- Heliolitidae
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Heliolites tcherganensis
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Heliolites longispinus
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Anthozoa
- Auloporida
- Syringoporidae
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Syringopora khalaganensis
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Anthozoa
- Favositida
- Parastriatoporidae
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Parastriatopora sp.
Sokolov 1949
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Anthozoa
- Favositida
- Favositidae
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Squameofavosites gurjevskiensis
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Squameofavosites diformis
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Favosites kojulaensis
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Mesofavosites regularis
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Anthozoa
- Stauriida
- Kyphophyllidae
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Pilophyllum sp.
Wedekind 1927
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Anthozoa
- Stauriida
- Lykophyllidae
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Phaulactis sp.
Ryder 1926
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Anthozoa
- Stauriida
- Halliidae
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Lamprophyllum sp.
Wedekind 1927
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Anthozoa
- Cystiphyllida
- Holmophyllidae
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Holmophyllum sp.
Wedekind 1927
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Anthozoa
- Cystiphyllida
- Cystiphyllidae
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Cystiphyllum cf. siluriensis
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Gyalophyllum sp.
(Wedekind 1927)
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original and current combination Cystiphyllum (Gyalophyllum) | |||||||
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Rhynchotreta sp.
Hall 1879
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Rhynchonellata
- Atrypida
- Atrypidae
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Atrypa reticularis
(Linnaeus 1758)
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original and current combination Anomia reticularis | |||||||
see common names |
Geography
Country: | China | State/province: | Sichuan | County: | Zoge |
Coordinates: | 34.0° North, 103.0° East (view map) | ||||
Paleocoordinates: | 37.6° South, 124.5° East | ||||
Basis of coordinate: | estimated from map | ||||
Geographic resolution: | local area |
Time
Period: | Silurian | Epoch: | Ludlow |
10 m.y. bin: | Silurian 2 | ||
Key time interval: | Ludlow | ||
Age range of interval: | 427.40000 - 423.00000 m.y. ago |
Stratigraphy
Formation: | Pailungchiang | ||||
Stratigraphic resolution: | member | ||||
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. Ref. 7624 refers to Pailungchiang as formation, whereas previous working groups called it a group. "the fauna suggests an Upper silurian age. In this region, because this unit is restricted to the Upper Silurian, we prefer formational to group status." |
Lithology and environment
Primary lithology: | gray sandstone |
Secondary lithology: | "limestone" |
Includes fossils? | Y |
Lithology description: "In the type section it is composed of dark-gray, metamorphosed sandstone, silicified limestone, slate, with some tuffaceous sandstone. The [Working Group] finds a dark-gray, nodular limestone at the top, which contains a shelly fauna yielding [list]...The total thickness of the unit is 2941 m." | |
Environment: | marine indet. |
Taphonomy
Collection methods and comments
Reason for describing collection: | biostratigraphic analysis |
Metadata
Database number: | 27806 | ||
Authorizer: | M. Foote | Enterer: | M. Foote |
Modifier: | M. Foote | Research group: | marine invertebrate |
Created: | 2003-01-10 09:22:37 | Last modified: | 2006-09-13 14:01:03 |
Access level: | the public | Released: | 2003-01-10 09:22:37 |
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] |