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The Ameki Formation is a Lutetian to Bartonian geological formation located in Nigeria. It belongs to the Bende-Ameki Group, which also consists of two formations namely Nanka Formation, Nsugbe Formation.[1][2]
Ameki Formation | |
---|---|
Stratigraphic range: Lutetian-Bartonian | |
Type | Geological formation |
Unit of | Bende-Ameki Group |
Lithology | |
Primary | Shale |
Other | Sandstone, siltstone |
Location | |
Coordinates | 6.0°N 7.0°E |
Approximate paleocoordinates | 1.6°N 1.5°E |
Country | Nigeria |
Extent | Niger Delta Basin |
Type section | |
Named for | Ameki |
Among others, the following fossils have been reported in the formation:[3][4]
Mammals reported from the Ameki Formation | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Pappocetus | P. lugardi | Ombialla District.[5] | Mandibles.[5][6] | A protocetid. | |
Birds reported from the Ameki Formation | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Gigantornis | G. eaglesomei | A pelagornithid. | |||
Squamates reported from the Ameki Formation | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Pterosphenus | Trunk vertebra.[7] | A palaeophiid. | |||
Turtles reported from the Ameki Formation | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Cosmochelys | C. dolloi | Ombialla District.[5] | Portions of carapace.[5] | A dermochelyid. | |
Cephalopods reported from the Ameki Formation | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Deltoidonautilus | D. nwajidei | Multiple specimens.[2] | A nautiloid. | ||
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