Xibiehe Formation, Xibiehe, N Damao Qi, Neimonggol: Ludlow - Pridoli, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Densostromapodicum sp.
Crinoidea
Cyclocyclicus sp. Yeltysheva 1955
crinoid columnal taxon
Pentagonocyclicus sp. Yeltysheva and Shevchenko 1960
crinoid columnal taxon
Bivalvia - Grammysiidae
Grammysioidea sp. (Williams 1916)
original and current combination Grammysia (Grammysioidea)
listed as "Grammysoidea"; presumably a misprint
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Stegerhynchus sp. (Foerste 1909)
original and current combination Rhynchonella (Stegerhynchus)
Rhynchonellata - Rhynchonellida - Camarotoechiidae
Linguopugnoides sp.
Rhynchonellata - Atrypida - Septatrypidae
Atrypoidea sp. Mitchell and Dun 1920
Rhynchonellata - Athyridida - Retziellidae
"Protathyrisina" sp. Chu 1974
synonym of Retziella
Rhynchonellata - Orthida - Schizophoriidae
Schizophoria sp. King 1850
Strophomenata - Orthotetida - Areostrophiidae
Aesopomum sp. Havlicek 1965
Anthozoa - Cystiphyllida - Holmophyllidae
Holmophyllum sp. Wedekind 1927
Anthozoa - Stauriida - Entelophyllidae
Stereoxylodes sp. Wang 1947
synonym of Entelophyllum
corrected from "Stereoxyloges"
Anthozoa - Stauriida - Kyphophyllidae
Kyphophyllum sp. Wedekind 1927
Pilophyllum sp. Wedekind 1927
Anthozoa - Stauriida - Mucophyllidae
Stylopleura sp. Merriam 1973
Anthozoa - Stauriida - Pycnostylidae
Zelophyllum sp. Wedekind 1927
Anthozoa - Heliolitida - Stelliporellidae
Stelliporella sp. Wentzel 1895
Derivatolites sp. Bondarenko 1971
listed as "Detivatolites"; evidently a misprint
Anthozoa - Heliolitida - Heliolitidae
Heliolites sp. Dana 1846
Anthozoa - Favositida - Favositidae
Mesofavosites sp. Sokolov 1951
Favosites sp. Lamarck 1816
Anthozoa - Favositida - Alveolitidae
Tuvaelites sp. Chekhovich 1971
Anthozoa - Auloporida - Syringoporidae
Syringopora sp. Goldfuss 1826
Stromatoporoidea - Clathrodictyida - Clathrodictyidae
Clathrodictyon sp. Nicholson and Murie 1878
Stromatoporoidea - Actinostromatida - Densastromatidae
Pycnodictyon densum
Stromatoporoidea - Syringostromatida - Coenostromatidae
Parallelostroma typicum
Parallelostroma maestermyrense
see common names

Geography
Country:China State/province:Nei Mongol
Coordinates: 42.0° North, 110.0° East (view map)
Paleocoordinates:23.5° South, 108.8° East
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Silurian
10 m.y. bin:Silurian 2
*Epoch:Late/Upper Ludlow - Pridoli
Key time interval:Ludlow - Pridoli
Age range of interval:427.40000 - 419.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Xibiehe
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. Original description placed formation in Mid Devonian, but "Li Wen-guo et al. (1979) consider this fauna to be of Late Ludlow to Pridoli age, chiefly on the basis of the brachiopods and stromatoporoids."
Lithology and environment
Primary lithology:gray,green sandstone
Secondary lithology:shelly/skeletal "limestone"
Includes fossils?Y
Lithology description: "The unit consists chiefly of gray and greenish-gray, coarse-grained, quartzitic sandstone, and micaceous siltstone, with interbedded, thin-bedded, bioclastic limestone, and reef limestone rich in fossils. The thickness is 357 m."
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:27903
Authorizer:M. Foote Enterer:M. Foote
Modifier:M. Foote Research group:marine invertebrate
Created:2003-01-16 07:48:33 Last modified:2006-09-13 14:01:03
Access level:the public Released:2003-01-16 07:48:33
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]