AFI 4009. Chenjiahe section (Ordovician of China)

Where: Hubei, China (30.9° N, 111.4° E: paleocoordinates 14.3° N, 139.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Azygograptus suecicus graptolite zone, 1B Member (Dawan Formation), Floian (477.7 - 470.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: calcareous mudstone

Size class: macrofossils

Primary reference: R. Zhan, J. Jin, and P. Chen. 2007. Brachiopod diversification during the Early–Mid Ordovician: an example from the Dawan Formation, Yichang area, central China. Canadian Journal of Earth Sciences 44:9-24 [P. Wagner/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 186121: authorized by Pete Wagner, entered by Pete Wagner on 15.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Strophomenida - Taffiidae
Leptella grandis Xu et al. 1974
 Pentamerida - Tetralobulidae
 Pentamerida - Clarkellidae
"Yangtzeella poloi" = Yangtzeella (Yangtzeella) poloi
"Yangtzeella poloi" = Yangtzeella (Yangtzeella) poloi Martelli 1901
 Orthida - Draboviidae
 Orthida - Paurorthidae
 Orthida - Archaeorthidae
Nothorthis perplexa Xu and Liu 1984
 Orthida - Orthidae
 Orthida - Euorthisinidae
 Orthida - Plectorthidae
 Lingulida - Obolidae
 Lingulida - Acrothelidae
Conodiscus sp. Ulrich and Cooper 1936