Dawan Fm., DaTianBa, Xiushan Co., Sichuan Prov., China (Ordovician of China)

Where: Sichuan, China (29.0° N, 109.0° E: paleocoordinates 16.8° N, 138.9° E)

• local area-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified limestone and shale

• nodular limestone and shale

Primary reference: Sichuan Stratigraphic Work Group. 1978. Regional stratigraphic table of the southwestern region of China, Sichuan part. Geological Publishing House, Beijing, China [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 7661: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 30.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Dichograptidae
Azygograptus sp., Didymograptus sp.
Azygograptus sp. Nicholson and Lapworth 1875 graptolite
Didymograptus sp. McCoy 1851 graptolite
Cephalopoda
 Bisonocerida - Manchuroceratidae
Manchuroceras sp.
Manchuroceras sp. Ozaki 1927
 Ellesmerocerida - Protocycloceratidae
Protocycloceras sp.
 Ellesmerocerida - Bathmoceratidae
Bathmoceras sp.
Bathmoceras sp. Barrande 1865
Rhynchonellata
 Pentamerida - Clarkellidae
Yangtzeella sp.
Yangtzeella sp. Kolarova 1925
 Orthida - Orthidae
Orthis sp.
Orthis sp. Dalman 1828