| Quantou Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Unit of | Songliao Basin |
| Sub-units | First through Fourth Members |
| Underlies | Qingshankou Formation |
| Overlies | Denglouku Formation |
| Thickness | 190 to 1379 m |
| Lithology | |
| Primary | Sandstone |
| Other | Mudstone |
| Location | |
| Region | Jilin |
| Country | |
The Quantou Formation is a Cretaceous Period (Mesozoic Era) geologic formation in China. It is primarily Albian in age. It has been explored for its potential as a tight oil reservoir.
Dinosaur remains are among the fossils that have been recovered from the formation.
Color key
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Notes
Uncertain or tentative taxa are in small text
crossed out taxa are discredited.
| Ornithischians of the Quantou Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Changchunsaurus | C. parvus | A thescelosaurid ornithischian | ||||
| Helioceratops | H. brachygnathus | A neoceratopsian | ||||
| Saurischians of the Quantou Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Dromaeosauridae indet. | Indeterminate | A large dromaeosaurid theropod | ||||
| Jiutaisaurus | J. xidiensis | A titanosauriform sauropod | ||||
| Mammals of the Quantou Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Gobiconodon | G. gongzhulingensis | A gobiconodontid eutriconodont | ||||
| Zhangolestes | Z. jilinensis | A zalambdalestid eutherian | ||||
| Oofossils of the Quantou Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Jilinoolithus | J. lamellotestus | Likely laid by non-avian maniraptoran theropod | ||||