Langhian | Gazhacun formation Shanwang formation (?Langhian) |
Aptian | Laiyang formation Yixian formation (Barremian – Aptian) |
Barremian | Yixian formation (Barremian – Aptian) |
Oxfordian | Tiaojishan formation (Bathonian – Oxfordian) |
Callovian | Tiaojishan formation (Bathonian – Oxfordian) |
Bathonian | Jiulongshan formation Tiaojishan formation (Bathonian – Oxfordian) |
Telychian | Lungmachi formation (Hirnantian – Telychian) Wangjiawan formation |
Aeronian | Lungmachi formation (Hirnantian – Telychian) |
Rhuddanian | Lungmachi formation (Hirnantian – Telychian) |
Hirnantian | Lungmachi formation (Hirnantian – Telychian) Wenchang formation Yankou formation |
Katian | Beiguoshan formation Pingliang formation (Sandbian – Katian) Pagoda formation |
Sandbian | Pupiao formation Pingliang formation (Sandbian – Katian) Datianba formation (Darriwilian – Sandbian) |
Darriwilian | Shihtien formation Datianba formation (Darriwilian – Sandbian) Guniutan formation Dawan formation (Dapingian – Darriwilian) Kuniutan formation Laojianshan formation Zitai formation Majiagou formation |
Dapingian | Dawan formation (Dapingian – Darriwilian) Siliangssu formation (Floian – Dapingian) |
Floian | Jingshan formation (Tremadoc – Floian) Ningkuo formation Siliangssu formation (Floian – Dapingian) Tonggao formation |
Tremadoc | Jingshan formation (Tremadoc – Floian) Liuxia formation Madaoyu formation Nantsinkwan formation Yinchufu formation Shijiautou formation |
Cambrian stage 10 | Abuqiehai formation (Guzhangian – Cambrian stage 10) |
Jiangshanian | Abuqiehai formation (Guzhangian – Cambrian stage 10) |
Paibian | Abuqiehai formation (Guzhangian – Cambrian stage 10) |
Guzhangian | Abuqiehai formation (Guzhangian – Cambrian stage 10) |
Wuliuan | Hulusitai formation Taosigou formation (Cambrian stage 4 – Wuliuan) |
Cambrian stage 4 | Taosigou formation (Cambrian stage 4 – Wuliuan) |
Cambrian stage 3 | Suyukou formation |
Siyangshan formation (Furongian), Sandu formation (Furongian), Chaofeng formation (Furongian), Baguamiao formation (Middle Cambrian), Hetaoping formation (Upper Cambrian)