AFI 4004. 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

When: Didymograptus eobifidus graptolite zone, Dawan Formation, Floian (477.7 - 470.0 Ma)

• Unit 3, which is not the same as "Member 3" elsewhere.

• bed-level stratigraphic resolution

Environment/lithology: marine; 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 186116: authorized by Pete Wagner, entered by Pete Wagner on 14.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Billingsellida - Polytoechiidae
 Strophomenida - Taffiidae
Leptella grandis Xu et al. 1974
Schedophyla striata Xu et al. 1974
 Pentamerida - Tetralobulidae
 Pentamerida - Clarkellidae
"Yangtzeella poloi" = Yangtzeella (Yangtzeella) poloi
"Yangtzeella poloi" = Yangtzeella (Yangtzeella) poloi Martelli 1901
 Orthida - Paurorthidae
 Orthida - Orthidae