Where: Guangxi, China (22.4° N, 107.6° E: paleocoordinates 4.8° N, 126.7° E)
• coordinate based on political unit
• small collection-level geographic resolution
When: Shizhou Member (Yujiang Formation), Early/Lower Emsian (409.1 - 402.5 Ma)
• 1 m thick.
•JA: originally entered as Pragian; the Yujiang Formation falls in the dehiscens zone according to the authors and is therefore early Emsian
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, brown, yellow, argillaceous siltstone
Size class: macrofossils
Primary reference: R. Zhang and J., J.r. Pojeta. 1986. Devonian sections in Guangxi from which pelecypods were collected. Devonian rocks and Lower and Middle pelecypods of Guangxi, China and the Traverse Group of Michigan. United States Geological Survery Professional Paper 1394(E):33-43 [J. Alroy/M. Sommers/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 3991: authorized by John Alroy, entered by Mike Sommers on 13.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Atrypa sp. Dalman 1828 | |
Bivalvia | |
| |
? Caneyella yujianensis, "Ptychopteria (Actinopteria) cf. producta" = Actinopteria
"Ptychopteria (Actinopteria) cf. producta" = Actinopteria oyster subgn. (Actinopteria) - originally entered as "Ptychopteria cf. producta"
| |
Cimitaria sinensis clam
Grammysioidea sp. Williams 1916 clam | |
| |
Orthonota sp. Conrad 1841 clam |