Logbadjeck Formation 
Mungo River Formation 
Igumale Formation 
Koum Formation This is a list of fossiliferous stratigraphic units in Cameroon .
| Formation | Member | Period | Notes |
|---|---|---|---|
| Logbadjeck Formation | Coniacian-Early Campanian | [1] | |
| Mungo River Formation | Late Turonian-Santonian | [2] | |
| Koum Formation | Grés de Gaba | Aptian-Albian | [3] |
| Mbissirri | |||
The Oldman Formation is a stratigraphic unit of Late Cretaceous age that underlies much of southern Alberta, Canada. It consists primarily of sandstones that were deposited in fluvial channel and floodplain environments. It was named for exposures along the Oldman River between its confluence with the St. Mary River and the city of Lethbridge, and it is known primarily for its dinosaur remains and other fossils.
The Echkar Formation is a geological formation comprising sandstones and claystones in the Agadez Region of Niger, central Africa.
The Tiourarén Formation is a geological formation in the Agadez Region of Niger whose strata were originally thought to be Early Cretaceous. However, re-interpretation of the sediments showed that they are probably Middle Jurassic (Bathonian) in age. It is the uppermost unit of the Irhazer Group. Dinosaur remains are among the fossils that have been recovered from the formation.
The Koum Formation is a geological formation in the North Province of Cameroon, western Africa.
The Dukamaje Formation is a geological formation in Niger and Nigeria whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. A wealth of Mosasaur fossils have also been recovered from this formation, particularly from the area around Mt. Igdaman.
The Ankarafantsika Formation is a Late Cretaceous (Cenomanian) geologic formation of the Mahajanga Basin in the Boeny region of Madagascar, Africa. The fine-grained sandstones of the formation were deposited in a fluvial to lacustrine environment.
The In Beceten Formation, also Beceten or Ibecten is a Coniacian to Santonian geologic formation in the Iullemmeden Basin of Niger. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus. The lithology primarily consists of clays, fine limestones and sandy clays.
The Mexcala Formation is a Late Cretaceous geologic formation in Guerrero state, southern Mexico.
The Irhazer Shale or Irhazer II Formation is a Middle Jurassic geologic formation of the Irhazer Group in the Agadez Region of Niger. Fossil ornithopod tracks have been reported from the formation. The dinosaur Spinophorosaurus is known from the formation.
Abelodon is an extinct genus of peramurid mammal in the clade Zatheria, which lived during the Barremian age. It is known from a single tooth found in Cameroon's Koum Formation.
Fossiliferous stratigraphic units of the countries and dependencies of Africa | ||
|---|---|---|
| Sovereign states |
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