LocNo: 6679Tsingyuan Fm., up. Mb., bed 12,lower pt.
| Country: |
China
|
| Province: |
Ningxia, Zhongwei Co.
|
| Locality: |
Xiaoyuchuan section, upper
|
| Layer: | Tsingyuan Fm., up. Mb., bed 12,lower pt. |
| Lower Boundary: |
Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
|
| Upper Boundary: |
Langsettian--Duckmantian, Westphal.A--B, 311.3 million years
|
| Georeference: |