Jobu Formation
| Jobu Formation | |
|---|---|
| Stratigraphic range: late Cenomanian ~ | |
| Type | Geological formation |
| Unit of | Mifune Group |
| Lithology | |
| Primary | Mudstone |
| Location | |
| Coordinates | 32°42′N 130°54′E / 32.7°N 130.9°E |
| Approximate paleocoordinates | 44°24′N 123°30′E / 44.4°N 123.5°E |
| Region | Fukui, Kumamoto |
| Country | Japan |
The Jobu Formation is a Cretaceous geologic formation of Late Cenomanian age. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus. The oldest confirmed tyrannosaurid premaxillary tooth was recovered from the Jobu Formation. The mammal Sorlestes is also known from the formation.