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
Heliolites tcherganensis
Heliolites longispinus
Anthozoa - Auloporida - Syringoporidae
Syringopora khalaganensis
Anthozoa - Favositida - Parastriatoporidae
Parastriatopora sp. Sokolov 1949
Anthozoa - Favositida - Favositidae
Squameofavosites gurjevskiensis
Squameofavosites diformis
Favosites kojulaensis
Mesofavosites regularis
Anthozoa - Stauriida - Kyphophyllidae
Pilophyllum sp. Wedekind 1927
Anthozoa - Stauriida - Lykophyllidae
Phaulactis sp. Ryder 1926
Anthozoa - Stauriida - Halliidae
Lamprophyllum sp. Wedekind 1927
Anthozoa - Cystiphyllida - Holmophyllidae
Holmophyllum sp. Wedekind 1927
Anthozoa - Cystiphyllida - Cystiphyllidae
Cystiphyllum cf. siluriensis
Gyalophyllum sp. (Wedekind 1927)
original and current combination Cystiphyllum (Gyalophyllum)
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Rhynchotreta sp. Hall 1879
Rhynchonellata - Atrypida - Atrypidae
Atrypa reticularis (Linnaeus 1758)
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]