Earth:Koum Formation
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| Koum Formation Stratigraphic range: Aptian-Albian ~125–100 Ma | |
|---|---|
| Type | Geological formation |
| Sub-units | Mbissirri Member, Grés de Gaba Member |
| Lithology | |
| Primary | Sandstone |
| Other | Claystone, siltstone, conglomerate |
| Location | |
| Coordinates | [ ⚑ ] : 8°18′N 14°30′E / 8.3°N 14.5°E |
| Paleocoordinates | [ ⚑ ] 8°06′S 5°00′E / 8.1°S 5.0°E |
| Region | Nord |
| Country | Cameroon |
| Extent | Koum Basin |
  Koum Formation (Cameroon) | |
The Koum Formation is a geological formation in the North Province of Cameroon, western Africa.
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]
Template:Paleobiota-key-compact
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
| Sauropods of the Koum Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Sauropoda Indet. | Indeterminate | |||||
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 | ||||
Mammals
| Mammals of the Koum Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Abelodon | A. abeli | A peramurid zatherian | ||||
See also
- List of dinosaur-bearing rock formations
References
- ↑ 1.0 1.1 Weishampel et al., 2004, pp.571-573
- ↑ Congleton, J.D. (1990). "Vertebrate Paleontology of the Koum Basin, Northern Cameroon, and Archosaurian Paleobiogeography in the Early Cretaceous". Department of Geology, Southern Methodist University, Dallas.
- ↑ Bertin, Tor (2010). "A Catalogue of Material and Review of the Spinosauridae" (in en). PalArch's Journal of Vertebrate Palaeontology 7 (4): 01–39. ISSN 1567-2158. https://archives.palarch.nl/index.php/jvp/article/view/457.
Bibliography
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, https://books.google.com/books?id=vtZFDb_iw40C, retrieved 2019-02-21
Further reading
- J. D. Congleton. 1990. Vertebrate Paleontology of the Koum Basin, Northern Cameroon, and Archosaurian Paleobiogeography in the Early Cretaceous. Department of Geology, Southern Methodist University, Dallas xv-245
- L. J. Flynn and M. Brunet. 1989. Early Cretaceous vertebrates from Cameroon. Journal of Vertebrate Paleontology 9(3, suppl.):21A
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