Units 21-25, 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 limestone and lime mudstone

• purplish red nocular limestone, muddy limestone, and nodular 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 7692: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 31.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Endocerida - Endoceratidae
Endoceras sp., Dideroceras sp., Vaginoceras sp.
Endoceras sp. Hall 1847
Dideroceras sp. Flower 1950
Vaginoceras sp. Hyatt 1884
 Ellesmerocerida - Protocycloceratidae
Protocycloceras sp.
 Ellesmerocerida - Bathmoceratidae
Bathmoceras sp.
Bathmoceras sp. Barrande 1865
 Orthocerida - Orthoceratidae
Michelinoceras sp.
Michelinoceras sp. Foerste 1932
Gastropoda
 Euomphalina - Ophiletidae
Ecculiomphalus sp.
Ecculiomphalus sp. Portlock 1843 snail
Trilobita
 Corynexochida - Illaenidae
Illaenus sp.
Illaenus sp. Dalman 1827 trilobite
 Asaphida - Asaphidae
Isoteloides sp., Asaphellus sp.
Isoteloides sp. Raymond 1910 trilobite
Asaphellus sp. Callaway 1877 trilobite