Unit 32, Dawan Fm., Lower Mbr., Huanghuachang and Yiching, Hubei Prov., China (Ordovician of China)

Where: Hubei, China (33.0° N, 111.0° E: paleocoordinates 12.8° N, 140.9° E)

• local area-level geographic resolution

When: Lower Member (Dawan Formation), Arenig (478.6 - 466.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, argillaceous carbonate and shale

Primary reference: 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]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 4717: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 18.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Cochilioceras sp., Pseudoancistroceras sp.
Conodonta
 Prioniodontida - Balognathidae
Baltoniodus sp.
Baltoniodus sp. Lindstrom 1971 conodont
 Prioniodontida - Oistodontidae
Oistodus sp.
Oistodus sp. Pander 1856 conodont
 Prioniodontida - Acodontidae
Acodus sp.
Acodus sp. Pander 1856 conodont
  -
Nasusgnathus sp.
Nasusgnathus sp. Ni 1983 conodont
 Ozarkodinida -
Microzarkodina sp., Periodon sp.
Microzarkodina sp. Lindström 1971 conodont
Periodon sp. Hadding 1913 conodont
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus sp., Paroistodus sp.
Drepanoistodus sp. Lindstrom 1971 conodont
Paroistodus sp. Lindström 1971 conodont
 Protopanderodontida - Cornuodontidae
Cornuodus sp.
Cornuodus sp. conodont
 Protopanderodontida - Protopanderodontidae
Drepanodus sp., Protopanderodus sp., Scolopodus sp.
Drepanodus sp. Pander 1856 conodont
Protopanderodus sp. Lindström 1971 conodont
Scolopodus sp. conodont
 Protopanderodontida - Acanthodontidae
Scalpellodus sp.
Scalpellodus sp. Dzik 1976 conodont
Cephalopoda
 Endocerida - Endoceratidae
Chisiloceras sp., Dideroceras sp., Vaginoceras sp.
Chisiloceras sp. Gortani 1934
Dideroceras sp. Flower 1950
Vaginoceras sp. Hyatt 1884
 Ellesmerocerida - Protocycloceratidae
Protocycloceras sp.
 Oncocerida - Oncoceratidae
Richardsonoceras sp.
Richardsonoceras sp. Foerste 1932