Ameki Railway - Cutting #14, southern Nigeria: Lutetian, Nigeria
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Arcida
- Arcidae
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Striarca africana
Newton 1922
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Fossularca africana
Newton 1922
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Bivalvia
- Carditida
- Carditidae
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Cardita costaenodulosis
Newton 1922
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Bivalvia
- Pholadida
- Corbulidae
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Corbula rugosa
Lamarck 1806
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recombined as Notocorbula rugosa | |||||||
Gastropoda
- Heterostropha
- Architectonicidae
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Stellaxis bicingulata
Newton 1922
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Solariaxis cf. canaliculata
Lamarck 1804
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Gastropoda
- Turritellidae
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Turritella cf. sulcifera
Deshayes 1832
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recombined as Ispharina sulcifera | |||||||
Gastropoda
- Pediculariidae
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Amphiperas nigeriensis
Newton 1922
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recombined as Eovolva nigeriensis | |||||||
Gastropoda
- Neogastropoda
- Cancellariidae
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Bonellitia cf. evulsa
Solander 1766
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Gastropoda
- Neogastropoda
- Conidae
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Conospirus cf. parisiensis
Deshayes 1835
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Gastropoda
- Neogastropoda
- Volutidae
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Volutospina conicoturrita
Newton 1922
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Gastropoda
- Rostellariidae
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Semiterebellum elongatum
Newton 1922
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recombined as Africoterebellum elongatum | |||||||
Semiterebellum suturocostatum
Newton 1922
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recombined as Amekichilus suturocostatum | |||||||
Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula falconeri
Newton 1922
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see common names |
Geography
Country: | Nigeria | County: | Omobialla |
Coordinates: | 5.0° North, 7.5° East (view map) | ||
Paleocoordinates: | 0.7° South, 1.4° East | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Lutetian | 10 m.y. bin: | Cenozoic 2 |
Key time interval: | Lutetian | ||
Age range of interval: | 47.80000 - 41.20000 m.y. ago |
Stratigraphy
Geological group: | Bende-Ameki | Formation: | Ameki | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Cutting #14. No stratigraphic value can be assigned to cutting numbering. Collections presumably originate from the Ameki Fm (not stated in text, but highly likely based on age and geography). Newton states an upper Lutetian age. This has not be confirmed against publications of Arua and other Ameke Fm collections DO NOT state an age finer than "Eocene". This needs to be rectified as these will be orphaned in current binning scheme. Uhen's Ameki Fm collections state "Middle Eocene", which while encompassing the Lutetian will also be orphaned. |
Lithology and environment
Primary lithology: | concretionary poorly lithified carbonaceous "shale" |
Secondary lithology: | concretionary carbonaceous claystone |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: Facies may include: estuarine shales, clays and marls, with septarian nodules and pieces of coal and resin. | |
Environment: | estuary/bay |
Geology comments: Described as estuarine facies |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: Collected by Sir Frederick Lugard, Sir J. Eaglesome, A. Kitson, W. Bell over several occasions, but with consistency in original of collections. | |
Taxonomic list comments:Obviously contains antiquated taxonomy. Will vett taxonomy according to that presented by Arua et al. (1987, 1988, 1989) - A. Hendy. |
Metadata
Also known as: | Cutting #14 | ||
Database number: | 51245 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2005-06-01 10:28:41 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2005-06-01 10:28:41 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
13646. | R. B. Newton. 1922. Eocene Mollusca from Nigeria. Geological Survey of Nigeria Bulletin 3 [A. Miller/A. Hendy/A. Hendy] |