Where: Guangxi, China (25.0° N, 110.0° E: paleocoordinates 0.2° S, 124.0° E)
• coordinate based on political unit
• small collection-level geographic resolution
When: Sipai Formation, Late/Upper Emsian (402.5 - 391.9 Ma)
• 90 m thick. [JA: originally entered as Emsian; Polygnathus inversus and P. serotinus are present in the lowest unit, so the entire formation is late Emsian]
• group of beds-level stratigraphic resolution
Environment/lithology: marine; gray, argillaceous, calcareous shale and limestone
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 4796: authorized by John Alroy, entered by Mike Sommers on 24.08.1999, edited by Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Nuculoidea minuta nut clam | |
| |
| |
Sinodora semiglabra clam
Sinodora bisulcata clam | |
? Crassatellopsis sp. Beushausen 1895 clam | |
Paracyclas rugosa clam | |
Modiomorpha sp. Hall and Whitfield 1869 clam | |
? Sanguinolites sp. M'Coy 1844 clam | |
"Ptychopteria (Actinopteria) producta" = Actinopteria
| |
Rhynchonellata | |
"Glyptospirifer quadriplicatus" = Howittia
"Glyptospirifer quadriplicatus" = Howittia |