Lower section, Tongzhi Fm., ShuangHe, Changnin Co., Sichuan Prov., China: Tremadoc, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Paraloshanella sp.
Rhynchonellata - Orthida - Plectorthidae
Nanorthis sp. Ulrich and Cooper 1936
Rhynchonellata - Pentamerida - Tetralobulidae
Imbricatia sp.
Strophomenata - Billingsellida - Polytoechiidae
Tritoechia sp. Ulrich and Cooper 1936
Lingulata - Lingulida - Obolidae
Lingulella sp. Salter 1866
Trilobita - Asaphida - Asaphidae
Psilocephalina sp. Hsu 1948
Trilobita - Asaphida - Taihungshaniidae
Tungtzuella sp. Lu 1957
see common names

Geography
Country:China State/province:Sichuan County:Changnin
Coordinates: 28.0° North, 105.0° East (view map)
Paleocoordinates:22.8° North, 144.6° East
Geographic resolution:local area
Time
10 m.y. bin:Cambrian-Ordovician
*Period:Early/Lower Ordovician *Epoch:Early/Lower Tremadoc
*International age/stage:Early/Lower Tremadoc
Key time interval:Tremadoc
Age range of interval:485.00000 - 477.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Tongzi
Local section:Lower
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified dolomite
Secondary lithology: "limestone"
Lithology description: dolomite and limestone
Environment:peritidal
Taphonomy
Collection methods and comments
Collection excludes:species names
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:7673
Authorizer:A. Miller Enterer:P. Novack-Gottshall
Research group:marine invertebrate
Created:2000-05-30 15:06:42 Last modified:2000-05-30 18:06:42
Access level:the public Released:2000-11-20 13:53:35
Creative Commons license:CC BY
Reference information

Primary reference:

485. Sichuan Stratigraphic Work Group. 1978. Regional stratigraphic table of the southwestern region of China, Sichuan part. Geological Publishing House, Beijing, China [A. Miller/P. Novack-Gottshall]