Shaiwa, unit 2 (Permian of China)

Where: Guizhou, China (25.6° N, 106.5° E: paleocoordinates 5.4° N, 96.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified chert and lithified, cherty/siliceous mudstone

• dark-gray medium- to thin-bedded chert with thin-bedded siliceous mudstone interbeds, 0.6 m thick

Size class: microfossils

Primary reference: Q. Feng and S. Gu. 2002. Uppermost Changxingian (Permian) radiolarian fauna from southern Guizhou, southwestern China. Journal of Paleontology 76(5):797-809 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95316: authorized by Wolfgang Kiessling, entered by Uta Merkel on 12.04.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

 Entactinaria - Entactiniidae
"Copicyntra ziyunensis n. sp." = Paracopicyntra ziyunensis Feng and Gu 2002 radiolarian
Klaengspongus spinosus Sashida 2000 radiolarian
Copicyntra sp. Nazarov and Ormiston 1985 radiolarian
Hegleria mammilla Sheng and Wang 1985 radiolarian
 Polycystina -
Latentifistularia indet. Caridroit et al. 1999 radiolarian
 Latentifistularia -
Gustefana obliqueannulata Kozur 1993 radiolarian
 Latentifistularia - Ormistonellidae
Nazarovella gracilis, "Nazarovella inflata" = Quadriremis inflata
Nazarovella gracilis De Wever and Caridroit 1984 radiolarian
"Nazarovella inflata" = Quadriremis inflata Sashida and Tonishi 1986 radiolarian
 Latentifistularia - Cauletellidae
Foremanhelena triangula De Wever and Caridroit 1984 radiolarian
Triplanospongos dekkasensis Noble and Renne 1990 radiolarian
Ishigaum "sp. 1" De Wever and Caridroit 1984 radiolarian
Ishigaum trifustis De Wever and Caridroit 1984 radiolarian
 Spumellaria - Oertlispongidae
"Copiellintra fontainei" = Paroertlispongus fontainei
"Copiellintra fontainei" = Paroertlispongus fontainei Sashida 2000 radiolarian