Yinshanpo KC267c, 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 152027: authorized by Matthew Clapham, entered by Matthew Clapham on 03.11.2013, edited by Nicole Bonuso

Creative Commons license: CC BY (attribution)

Taxonomic list

 Athyridida - Neoretziidae
"Neoretzia subcircularis" = Schwagerispira subcircularis
"Neoretzia subcircularis" = Schwagerispira subcircularis Yang and Xu 1966
 Rhynchonellida - Allorhynchidae
 Rhynchonellida - Norellidae
 Spiriferinida - Spiriferellinidae
Pseudospiriferina multicostata n. sp. Yang and Xu 1966
 Spiriferinida - Lepismatinidae
Lepismatina hsui Wang 1955
 Terebratulida - Zeilleriidae
"Aulacothyris angustaeformis n. sp." = Sacothyris angustaeformis
"Aulacothyris angustaeformis n. sp." = Sacothyris angustaeformis Yang and Xu 1966
 Terebratulida - Dielasmatidae
"Adygella elongata n. sp." = Coenothyris elongata
"Adygella elongata n. sp." = Coenothyris elongata Yang and Xu 1966