Koum Formation
Geological formation in Cameroon
From Wikipedia, the free encyclopedia
The Koum Formation is a geological formation in the North Province of Cameroon, western Africa.
Sub-unitsMbissirri Member, Grés de Gaba Member
PrimarySandstone
OtherClaystone, siltstone, conglomerate
| Koum Formation | |
|---|---|
| Stratigraphic range: Aptian-Albian ~ | |
| Type | Geological formation |
| Sub-units | Mbissirri Member, Grés de Gaba Member |
| Lithology | |
| Primary | Sandstone |
| Other | Claystone, siltstone, conglomerate |
| Location | |
| Coordinates | 8.3°N 14.5°E |
| Approximate paleocoordinates | 8.1°S 5.0°E |
| Region | Nord |
| Country | Cameroon |
| Extent | Koum Basin |
  Koum Formation (Cameroon) | |
Its strata date back to the Aptian and Albian stages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]
Fossil content
The following fossils have been found in the formation:[1]
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Dinosaurs
Ornithopods
| Ornithopods of the Koum Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Ouranosaurus[2] | O. nigeriensis | A sail-backed hadrosauriform iguanodontian |  | |||
Sauropoda
Theropods
| Theropods of the Koum Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Baryonychinae Indet.[3] | Indeterminate | A spinosaurid theropod | ||||
| Theropoda Indet. | Indeterminate | |||||
Thyreophorans
| Thyreophorans of the Koum Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| ?Thyreophora Indet. | Indeterminate | |||||
Crocodylomorphs
| Crocodylomorphs of the Koum Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Araripesuchus | A. wegeneri | A uruguaysuchid notosuchian |  | |||
| Brillanceausuchus | B. babouriensis | A paralligatorid crocodyliform | ||||