Unit 39-40, Guniutan Fm., Huanghuachang and Yiching, Hubei Prov., China: Early/Lower Llanvirn, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Parasclerites sp.
Tetraprionoidus sp.
Conodonta - Belodellida - Belodellidae
Belodella sp. Ethington 1959
Conodonta - Ozarkodinida
Periodon sp. Hadding 1913
Microzarkodina sp. Lindström 1971
Conodonta - Prioniodontida - Acodontidae
Tropodus sp. Kennedy 1980
Conodonta - Prioniodontida - Balognathidae
Amorphognathus sp. Branson and Mehl 1933
Baltoniodus sp. Lindstrom 1971
Conodonta - Prioniodontida
Erraticodon sp. Dzik 1978
Conodonta - Proconodontida - Proconodontidae
Proconodontus sp. Miller 1969
Conodonta - Proconodontida - Cordylodontidae
Cordylodus sp. Pander 1856
Conodonta - Paraconodontida
Westergaardodina sp. Müller 1959
Conodonta - Protopanderodontida - Cornuodontidae
Cornuodus sp.
Conodonta - Protopanderodontida - Drepanoistodontidae
Paroistodus sp. Lindström 1971
Drepanoistodus sp. Lindstrom 1971
Paltodus sp. Pander 1856
Conodonta - Protopanderodontida - Protopanderodontidae
Drepanodus sp. Pander 1856
Protopanderodus sp. Lindström 1971
Conodonta - Protopanderodontida - Acanthodontidae
Scalpellodus sp. Dzik 1976
Trilobita - Corynexochida - Illaenidae
Illaenus sp. Dalman 1827
Trilobita - Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843
Ostracoda - Podocopida
Predarwinula sp.
Ostracoda - Podocopida - Bairdiocyprididae
Longiscula sp. Neckaja 1958
Elliptocyprites sp.
Ostracoda - Beyrichicopida - Spinigeritidae
Pinnatulites sp.
Ostracoda - Leperditellocopida - Aparchitidae
Aparchites sp.
Rhynchonellata - Pentamerida - Clarkellidae
Yangtzeella sp. Kolarova 1925
Rhynchonellata - Orthida - Paurorthidae
Nereidella sp.
Cephalopoda - Oncocerida - Oncoceratidae
Richardsonoceras sp. Foerste 1932
Cephalopoda - Orthocerida - Orthoceratidae
Michelinoceras sp. Foerste 1932
Cephalopoda - Endocerida - Endoceratidae
Vaginoceras sp. Hyatt 1884
Dideroceras sp. Flower 1950
Chisiloceras sp. Gortani 1934
unclassified
Ambalodus sp. Branson and Mehl 1933
see common names

Geography
Country:China State/province:Hubei
Coordinates: 33.0° North, 111.0° East (view map)
Paleocoordinates:10.8° North, 137.7° East
Geographic resolution:local area
Time
Period:Ordovician Epoch:Middle Ordovician
10 m.y. bin:Ordovician 2-3
*Period:Middle Ordovician *Epoch:Early/Lower Llanvirn
Key time interval:Early/Lower Llanvirn
Age range of interval:468.40000 - 461.30000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Guniutan
Local section:39-40
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified argillaceous "carbonate"
Secondary lithology: "shale"
Environment:offshore shelf
Taphonomy
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:4713
Authorizer:A. Miller Enterer:P. Novack-Gottshall
Research group:marine invertebrate
Created:1999-08-17 17:41:53 Last modified:1999-08-17 20:41:53
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]