Lithostratigraphy
Tertiary
| Langhian | Gazhacun formation Shanwang formation (?Langhian) |
Cretaceous
| Aptian | Laiyang formation Yixian formation (Barremian – Aptian) |
| Barremian | Yixian formation (Barremian – Aptian) |
Jurassic
| Oxfordian | Tiaojishan formation (Bathonian – Oxfordian) |
| Callovian | Tiaojishan formation (Bathonian – Oxfordian) |
| Bathonian | Jiulongshan formation Tiaojishan formation (Bathonian – Oxfordian) |
| Aalenian | Xintiangou formation (Toarcian – Aalenian) |
| Toarcian | Xintiangou formation (Toarcian – Aalenian) |
| Pliensbachian | Fengjiahe formation |
Carboniferous
Devonian
Silurian
| Ludfordian | Kuanti formation (Gorstian – Ludfordian) |
| Gorstian | Kuanti formation (Gorstian – Ludfordian) |
| Telychian | Lungmachi formation (Hirnantian – Telychian) Wangjiawan formation |
| Aeronian | Lungmachi formation (Hirnantian – Telychian) |
| Rhuddanian | Anji formation (Hirnantian – Rhuddanian) Lungmachi formation (Hirnantian – Telychian) |
Ordovician: Inner Mongolia and Ningxia
Ordovician: Others
| Hirnantian | Anji formation (Hirnantian – Rhuddanian) Lungmachi formation (Hirnantian – Telychian) Wenchang formation Yankou formation |
| Katian | Beiguoshan formation Pingliang formation (Sandbian – Katian) Pagoda formation Yingan 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 | Fenxiang formation Jingshan formation (Tremadoc – Floian) Ningkuo formation Siliangssu formation (Floian – Dapingian) Tonggao formation |
| Tremadoc | Guotang formation Liuxia formation Jingshan formation (Tremadoc – Floian) Madaoyu formation Nantsinkwan formation Yinchufu formation Shijiautou formation |
Cambrian: Inner Mongolia and Ningxia
| 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 |
Cambrian: Others
Not placed in stage
Siyangshan formation (Furongian), Sandu formation (Furongian), Chaofeng formation (Furongian), Niutitang formation (Lower Cambrian), Baguamiao formation (Middle Cambrian), Hetaoping formation (Upper Cambrian)