Units 1 to 4, TanJiaGou (Ordovician of China)

Also known as Units 1 to 4, Xiliansi Fm., TanJiaGou, GuangYuan Co., Sichuan Prov., China

Where: Sichuan, China (32.0° N, 106.0° E: paleocoordinates 16.9° N, 142.6° E)

• local area-level geographic resolution

When: Xiliangsi Formation, Arenig (478.6 - 466.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, sandy limestone and shale

• sandy limestone and shale

Size class: macrofossils

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 7680: 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
Trilobita
 Phacopida - Calymenidae
Neseuretus sp.
Neseuretus sp. Hicks 1873 trilobite
 Asaphida - Asaphidae
Isoteloides sp., Megistaspis sp., Ptychopyge sp.
Isoteloides sp. Raymond 1910 trilobite
Megistaspis sp. Jaanusson 1956 trilobite
Ptychopyge sp. Angelin 1854 trilobite
 Trinucleida - Trinucleidae
Hanchungolithus sp.
Hanchungolithus sp. Lu 1956 trilobite