Yinshanpo RC x, Qingyan (Triassic to of China)
Where: Guizhou, China (26.3° N, 106.7° E: paleocoordinates 13.3° N, 95.1° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Qingyan Formation, Pelsonian to Pelsonian (247.2 - 242.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, gray, green, yellow shale and lithified, gray marl
• Evaporative basin in Sichuan and north Guizhou separated from open marine to south in Yunnan and Guangxi by biohermal belt, located just north of Qingyan. The area near Qingyan was a prebiohermal facies. (Apparently fore-reef or something equivalent, located on the slope?)
• Qingyan Formation consists mainly of gray to yellowish-green noncalcareous shale, pale-to dark-gray marl, calcareous shale, and argillaceous limestone, usually thin-bedded. Most of the fossils are collected from the shale and marl.
Size class: macrofossils
Primary reference: T. Y. Yang and G. R. Xu. 1966. Triassic Brachiopods of Central Guizhou Province 1-151 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 152039: authorized by Matthew Clapham, entered by Matthew Clapham on 03.11.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Rhynchonellata | |
"Neoretzia subcircularis" = Schwagerispira subcircularis
"Neoretzia subcircularis" = Schwagerispira subcircularis Yang and Xu 1966 |