Shijiezigou section, Layer 12, Beiguoshan Fm, Guyuan City (Ordovician of China)

Where: China (36.2° N, 106.6° E: paleocoordinates 26.4° S, 120.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Beiguoshan Formation, Katian (453.0 - 445.2 Ma)

• Lower Katian

Environment/lithology: shallow subtidal; packstone

• 7.5 m of thick-bedded Vermiporella packstone with dolomitic patches, and intrabed caves occur 3 m from the top of the layer.

Size class: macrofossils

Primary reference: L. Zheng, H. Bao, Y. Wu, L. Sun, H. Jiang, J. Ren, Z. Huang and L. Liu. 2018. Distinguishing coral reef facies from coral-bearing open platform facies: Examples from Ordovician Ordos Basin, Northwest China. Palaeogeography, Palaeoclimatology, Palaeoecology 495:72-86 [W. Kiessling/M. Krause]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 193317: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 11.05.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Ulvophyceae
  -
Vermiporella sp. Stolley 1893
Chlorophyceae
 Dasycladales - Dasycladaceae
Dasycladaceae indet. Kutzing 1843
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Trilobita
  -
Trilobita indet. Walch 1771 trilobite