Qiongzhusian

Subdivision of the Cambrian Period
−540 —
–
−535 —
–
−530 —
–
−525 —
–
−520 —
–
−515 —
–
−510 —
–
−505 —
–
−500 —
–
−495 —
–
−490 —
–
−485 —
Paleozoic
 
 
 
 
←
Orsten Fauna
←
Dresbachian extinction
←
←
←
Archaeocyatha extinction
←
←
←
←
←
SSF diversification, first brachiopods & archaeocyatha
←
←
Subdivision of the Cambrian according to the ICS, as of 2024.[1]
Vertical axis scale: Millions of years ago

The Qiongzhusian age is a regional subdivision (in China) of Cambrian Series 2 Stage 3; it is correlated with late Atdabanian rocks elsewhere and overlain by the Canglangpuian age.[2][3]

References

  1. ↑ "International Chronostratigraphic Chart" (PDF). International Commission on Stratigraphy. December 2024. Retrieved October 23, 2025.
  2. ↑ Rozanov, A. Y.; Zhu, M.; Pak, K. L.; Parkhaev, P. Y. (2008). "The 2nd Sino-Russian Symposium on the Lower Cambrian Subdivision". Paleontological Journal. 42 (4): 441. Bibcode:2008PalJ...42..441R. doi:10.1134/S0031030108040151. S2CID 129626166.
  3. ↑ Zhang, X.; Liu, W.; Zhao, Y. (2008). "Cambrian Burgess Shale-type Lagerstätten in South China: Distribution and significance". Gondwana Research. 14 (1–2): 255–262. Bibcode:2008GondR..14..255Z. doi:10.1016/j.gr.2007.06.008.