R251 (Permian of China)
Where: Sichuan, China (32.1° N, 106.0° E: paleocoordinates 10.1° N, 92.0° E)
• coordinate estimated from map
When: Dalong Formation, Changhsingian (254.2 - 252.2 Ma)
Environment/lithology: radiolarite
Size class: microfossils
Preservation: original silica
Collection methods: bulk,
Primary reference: A. Yao and K. Kuwahara. 1999. Permian and Triassic radiolarian assemblages from the Yangzi Platform. Biotic and Geological Department of the Paleo-Tethys in China 1-16 [W. Foster/W. Foster]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 220732: authorized by William Foster, entered by William Foster on 14.06.2021
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Protozoa | |
|
? Entactinosphaera sp. Foreman 1963 radiolarian | |
|
Spumellaria spp. Ehrenberg 1875 radiolarian | |
|
? Orbiculiforma sp. Pessagno 1973 radiolarian | |