Laochang, N. ornithoformis zone (Permian of China)

Where: Yunnan, China (22.8° N, 99.7° E: paleocoordinates 14.1° S, 84.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Laochang Formation, Changhsingian (254.2 - 252.2 Ma)

• sample 111, Neoalbaillella ornithoformis zone

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified chert

Size class: microfossils

Primary reference: 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]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 95625: authorized by Wolfgang Kiessling, entered by Uta Merkel on 20.04.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Polycystina
 Albaillellaria - Albaillellidae
 Latentifistularia - Cauletellidae
Ishigaum "sp. B" De Wever and Caridroit 1984
Ishigaum trifustis De Wever and Caridroit 1984
 Latentifistularia - Pseudolitheliidae
 Latentifistularia - Ormistonellidae
"Nazarovella inflata" = Quadriremis inflata Sashida and Tonishi 1986
Quadricaulis femoris Caridroit and De Wever 1986
Nazarovella scalae Caridroit and De Wever 1986
Nazarovella gracilis De Wever and Caridroit 1984
Nabespecha leonardia Cornell and Simpson 1986
 Entactinaria - Entactiniidae
Copicyntra shaiwaensis Wang and Shang 2001
Hegleria mammilla Sheng and Wang 1985
Stigmosphaerostylus itsukaichiensis Sashida and Tonishi 1985
"Copicyntra akikawaensis" = Paracopicyntra akikawaensis Sashida and Tonishi 1988