ammonites
Wufeng Fm., HuaYin Mountain, Wan County, Sichuan Prov., China (Ordovician to of China)

Where: Sichuan, China (31.0° N, 107.0° E: paleocoordinates 9.3° N, 131.3° E)

• local area-level geographic resolution

When: Wufeng Formation, Wufeng to Wufeng (449.5 - 443.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, black shale and chert

• black shale and chert

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 7641: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 30.05.2000