Dawan Fm., WenTang, Dayong Co., Hunan Province, China (Ordovician of China)

Where: Hunan, China (29.0° N, 110.0° E: paleocoordinates 16.1° N, 138.4° E)

• local area-level geographic resolution

When: Dawan Formation, Dawan (478.6 - 468.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, gray, green lime mudstone

• grayish green muddy limestone

Primary reference: Hunan Geology and Mine Deposit Bureau. 1988. Summary of regional geology of Hu''nan Province, China. Geological Publishing House, Beijing, China [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 7691: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 31.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

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Trilobita
 Asaphida - Nileidae
Nileus sp.
Nileus sp. Dalman 1827 trilobite
 Asaphida - Cyclopygidae
Cyclopyge sp.
Cyclopyge sp. Hawle and Corda 1847 trilobite
 Corynexochida - Illaenidae
Illaenus sp.
Illaenus sp. Dalman 1827 trilobite
Cephalopoda
 Endocerida - Endoceratidae
Chisiloceras sp.
Chisiloceras sp. Gortani 1934
 Endocerida - Cyrtendoceratidae
Cyrtendoceras sp.
Cyrtendoceras sp. Remelé 1886
 Ellesmerocerida - Protocycloceratidae
Protocycloceras sp.
 Dissidocerida - Troedssonellidae
Troedssonella sp.
Troedssonella sp. Kobayashi 1935
 Orthocerida - Baltoceratidae
Bactroceras sp.
Bactroceras sp. Holm 1898