Laochang, A. protolevis zone: Changhsingian, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Albaillellaria - Albaillellidae
Protozoa - Latentifistularia - Latentifistulidae
Protozoa - Latentifistularia - Cauletellidae
Triplanospongos musashiensis Sashida and Tonishi 1988
Ishigaum trifustis De Wever and Caridroit 1984
Protozoa - Latentifistularia - Ormistonellidae
Nazarovella inflata Sashida and Tonishi 1986
Protozoa - Entactinaria - Entactiniidae
Copicyntra akikawaensis Sashida and Tonishi 1988
see common names

Geography
Country:China State/province:Yunnan
Coordinates: 22.8° North, 99.7° East (view map)
Paleocoordinates:16.8° South, 86.5° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period: Permian Epoch: Lopingian
Stage: Changhsingian 10 m.y. bin: Permian 4
Key time interval: Changhsingian
Age range of interval: 254.14 - 251.902 m.y. ago
Stratigraphy
Formation:Laochang
Stratigraphic resolution:bed
Stratigraphy comments: samples 101, 102, Albaillella protolevis zone
Lithology and environment
Primary lithology: lithified chert
Environment:basinal (siliceous)
Taphonomy
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:95623
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:micropaleontology
Created:2010-04-20 03:38:32 Last modified:2025-02-22 15:12:02
Access level:the public Released:2010-04-20 03:38:32
Creative Commons license:CC0
Reference information

Primary reference:
32474. Y. J. Wang, Q. Yang, Y. N. Cheng and J. X. Li. 2006. Lopingian (Upper Permian) radiolarian biostratigraphy of south China. Palaeoworld 15:31-53 [W. Kiessling/U. Merkel]