Where: Guangxi, China (23.6° N, 109.7° E: paleocoordinates 1.2° N, 123.7° E)
• coordinate based on political unit
• small collection-level geographic resolution
When: Upper Member (Ertang Formation), Late/Upper Emsian (402.5 - 391.9 Ma)
• 19 m thick. [JA: originally entered as Emsian; Polygnathus inversus and P. serotinus are present in the lowest unit of the "Sipaian Stage" (probably this formation), so it is late Emsian]
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, gray 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 4813: authorized by John Alroy, entered by Mike Sommers on 24.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Cephalopoda | |
Hipparionoceras sp. Flower 1945 | |
Rhynchonellata | |
Howellella sp. Kozlowski 1946 | |
Acrospirifer sp. Wedekind 1926 | |
Strophomenata | |
Nadiastrophia sp. Talent 1963 | |
Lophophorata | |
Tentaculites sp. von Schlotheim 1820 | |
Anthozoa | |
Zonophyllum simplex horn coral
Zonophyllum crassimarginatum horn coral | |
Cladopora sp. Hall 1851 tabulate coral | |
Squameofavosites sp. Chernyshev 1941 tabulate coral
Favosites sp. Lamarck 1816 tabulate coral |