Unit 34, Dawan Fm., Upper Mbr., Huanghuachang and Yiching, Hubei Prov., China: Arenig, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Changyangoceras sp.
Leiomegalaspides sp.
? Protocycloceroides sp.
Conodonta - Prioniodontida - Balognathidae
Baltoniodus sp. Lindstrom 1971
Amorphognathus sp. Branson and Mehl 1933
Conodonta - Prioniodontida - Oistodontidae
Oistodus sp. Pander 1856
Conodonta - Protopanderodontida - Cornuodontidae
Cornuodus sp.
Conodonta - Protopanderodontida - Protopanderodontidae
Drepanodus sp. Pander 1856
Protopanderodus sp. Lindström 1971
Scolopodus sp.
Conodonta - Protopanderodontida - Drepanoistodontidae
Paroistodus sp. Lindström 1971
Drepanoistodus sp. Lindstrom 1971
Conodonta
Nasusgnathus sp. Ni 1983
Pterobranchia - Graptoloidea - Phyllograptidae
Tetragraptus sp. Salter 1863
Pterobranchia - Graptoloidea - Retiolitidae
Glyptograptus sp.
Strophomenata - Billingsellida - Polytoechiidae
Eremotoechia sp. Cooper 1956
Martellia sp. Wirth 1936
Strophomenata - Billingsellida - Gonambonitidae
Atelelasmoidea sp. Zeng 1987
Rhynchonellata - Pentamerida - Tetralobulidae
Syntrophopsis sp.
Rhynchonellata - Pentamerida - Clarkellidae
Yangtzeella sp. Kolarova 1925
Rhynchonellata - Orthida - Draboviidae
Diorthelasma sp. Cooper 1956
Rhynchonellata - Orthida - Paurorthidae
Nereidella sp.
Rhynchonellata - Orthida - Glyptorthidae
Lepidorthis sp.
Rhynchonellata - Orthida - Plectorthidae
Mimella sp. Cooper 1930
Rhynchonellata - Orthida - Euorthisinidae
Euorthisina sp.
Rhynchonellata - Protorthida - Skenidiidae
Protoskenidiodes sp. (Williams 1974)
original and current combination Protoskenidioides
Skenidioides sp. Schuchert and Cooper 1931
Cephalopoda - Endocerida - Endoceratidae
Dideroceras sp. Flower 1950
Cephalopoda - Ellesmerocerida - Protocycloceratidae
Protocycloceras sp. Hyatt 1900
Gastropoda - Euomphalina - Ophiletidae
Ecculiomphalus sp. Portlock 1843
Trilobita - Corynexochida - Leiostegiidae
Pseudocalymene sp. Pillet 1974
Trilobita - Trinucleida - Trinucleidae
Hanchungolithus sp. Lu 1956
Trilobita - Trinucleida - Raphiophoridae
Ampyx sp. (Dalman 1827)
original and current combination Asaphus (Ampyx)
Trilobita - Ptychopariida - Shumardiidae
Shumardia sp. Billings 1862
Trilobita - Asaphida - Hungaiidae
Hungioides sp. Kobayashi 1936
Trilobita - Asaphida - Asaphidae
Niobe sp. Angelin 1851
Megalaspides sp. Brögger 1886
Trilobita - Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843
Trilobita - Phacopida - Calymenidae
Neseuretus sp. Hicks 1873
Trilobita - Phacopida - Pliomeridae
Hammatocnemis sp. Kielan 1960
synonym of Ovalocephalus
Trilobita - Proetida - Telephinidae
Carolinites sp. Kobayashi 1940
Phorocephala sp. Lu 1965
Agnostida - Metagnostidae
Trinodus sp. M'Coy 1846
Geragnostus sp. Howell 1935
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:Upper
Local section:34
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified argillaceous "shale"
Secondary lithology: "carbonate"
Environment:offshore shelf
Taphonomy
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:4715
Authorizer:A. Miller Enterer:P. Novack-Gottshall
Research group:marine invertebrate
Created:1999-08-18 07:07:58 Last modified:1999-08-18 10:07:58
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]