Yinshanpo KC259a, Qingyan: Pelsonian - Illyrian, China

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Athyridida - Diplospirellidae
"Athyris" sulcata Yang and Xu 1966
recombined as Spirigerellina sulcata
(1 measurement)
Rhynchonellata - Rhynchonellida - Norellidae
Nudirostralina subtrinodosi Yang and Xu 1966
(1 measurement)
Gastropoda - Protoculidae
Toxoconcha brocchii (Stoppani 1857)
Yin and Yochelson 1983 2 individuals
recombined as Toxoconcha brocchi
Naticopsis (Naticopsis) signata (Koken 1900)
Yin and Yochelson 1983 6 individuals
(1 measurement)
see common names

Country:China State/province:Guizhou
Coordinates: 26.3° North, 106.7° East (view map)
Paleocoordinates:13.3° North, 95.1° East
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Period:Triassic Epoch:Middle Triassic
Stage:Anisian 10 m.y. bin:Triassic 2
Key time interval:Pelsonian - Illyrian
Age range of interval:247.20000 - 242.00000 m.y. ago
Stratigraphic resolution:group of beds
Stratigraphy comments: Bed 4 (units KC 259-262) is 80 m thick. About 200 m above base of Qingyan Formation.
Lithology and environment
Primary lithology:gray,green,yellow lithified "shale"
Secondary lithology:gray lithified marl
Lithology description: 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.
Environment:marine indet.
Geology comments: 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?)
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Database number:44246
Authorizer:D. Bottjer, M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2004-09-07 12:48:58 Last modified:2013-11-01 22:16:41
Access level:the public Released:2004-09-07 12:48:58
Creative Commons license:CC BY
Reference information

Primary reference:

48616. T. Y. Yang and G. R. Xu. 1966. Triassic Brachiopods of Central Guizhou Province 1-151 [M. Clapham/M. Clapham]

Secondary references:

11627 H.-F. Yin and E. L. Yochelson. 1983. Middle Triassic Gastropoda from Qingyan, Guizhou Province, China: 1 - Pleurotomariacea and Murchisoniacea. Journal of Paleontology 57(1):162-187 [D. Bottjer/M. Clapham/M. Clapham]
11631 H.-F. Yin and E. L. Yochelson. 1983. Middle Triassic Gastropoda from Qingyan, Guizhou Province, China: 2 - Trochacea and Neritacea. Journal of Paleontology 57(3):515-538 [D. Bottjer/M. Clapham/M. Clapham]
11672 H.-F. Yin and E. L. Yochelson. 1983. Middle Triassic Gastropoda from Qingyan, Guizhou Province, China: 3 - Euomphalacea and Loxonematacea. Journal of Paleontology 57(5):1098-1127 [D. Bottjer/M. Clapham/M. Clapham]