Unit 33, Dawan Fm., Middle Mbr., Huanghuachang and Yiching, Hubei Prov., China: Arenig, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Changyangoceras sp.
Pterobranchia - Graptoloidea - Dichograptidae
Didymograptus sp. McCoy 1851
Conodonta - Prioniodontida - Balognathidae
Baltoniodus sp. Lindstrom 1971
Conodonta - Prioniodontida - Oistodontidae
Oistodus sp. Pander 1856
Conodonta - Prioniodontida - Acodontidae
Acodus sp. Pander 1856
Conodonta
Nasusgnathus sp. Ni 1983
Conodonta - Protopanderodontida - Drepanoistodontidae
Drepanoistodus sp. Lindstrom 1971
Paroistodus sp. Lindström 1971
Conodonta - Protopanderodontida - Protopanderodontidae
Drepanodus sp. Pander 1856
Protopanderodus sp. Lindström 1971
Scolopodus sp.
Rhynchonellata - Pentamerida - Clarkellidae
Yangtzeella sp. Kolarova 1925
Rhynchonellata - Orthida - Paurorthidae
Nereidella sp.
Cephalopoda - Endocerida - Endoceratidae
Chisiloceras sp. Gortani 1934
Vaginoceras sp. Hyatt 1884
Cephalopoda - Ellesmerocerida - Protocycloceratidae
Protocycloceras sp. Hyatt 1900
Cephalopoda - Orthocerida - Sactoceratidae
Sactoceras sp. Hyatt 1884
Trilobita - Asaphida - Asaphidae
Liomegalaspides sp. Lu and Chang 1974
see common names

Geography
Country:China State/province:Hubei
Coordinates: 33.0° North, 111.0° East (view map)
Paleocoordinates:12.8° North, 140.9° East
Geographic resolution:local area
Time
Period:Ordovician
10 m.y. bin:Ordovician 2
*Period:Early/Lower Ordovician *Epoch:Late/Upper Arenig
Key time interval:Arenig
Age range of interval:477.70000 - 468.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Dawan Member:Middle
Local section:33
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified argillaceous "limestone"
Environment:offshore shelf
Geology comments: Muddy limestone
Taphonomy
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:4716
Authorizer:A. Miller Enterer:P. Novack-Gottshall
Research group:marine invertebrate
Created:1999-08-18 07:08:02 Last modified:1999-08-18 10:08:02
Access level:the public Released:2000-11-20 13:53:23
Creative Commons license:CC BY
Reference information

Primary reference:

287. X. Wang, L. Xian, S. Ni, Q. Zheng, G. Xu, T. Zhou, C. Lai and Z. Li. 1987. Biostratigraphy of the Yangtze Gorge Area. Part (2) Early Paleozoic Era. Geological Publishing House, Beijing 43-142 [A. Miller/P. Novack-Gottshall]