Ibenta, Abakaliki Division: Late Albian, Nigeria
collected by R. A. Reyment
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Brancoceratidae
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Hysteroceras binum
(Sowerby 1815)
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Mortoniceras (Mortoniceras) cf. romeri
(Haas 1942)
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Mortoniceras (Mortoniceras) sp.
Meek 1876
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Mortoniceras (Mortoniceras) aff. multicostatum
(Van Hoepen 1942)
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Mortoniceras (Mortoniceras) kiliani
(Lasswitz 1904)
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Elobiceras cf. subelobiense
Spath 1922
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| see common names | |||||||
Geography
| Country: | Nigeria |
| Coordinates: | 6.7° North, 8.1° East (view map) |
| Paleocoordinates: | 9.1° South, 1.0° West |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Late Albian | ||
| Age range of interval: | 106.2 - 100.5 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. AGE: early Late Albian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From near top of the formation, zone 3. | |||||
Lithology and environment
| Primary lithology: | lithified "siliciclastic" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Not stated in text, but probably siliciclastic. LITHIFICATION: Lithified, on the basis of figured specimens. | |
| Environment: | marine indet. |
| Geology comments: ENVIRONMENT: Marine siliciclastic setting. | |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH |
| Collectors: | R. A. Reyment |
| Collection method comments: COLLECTOR: R.A. Reyment. REPOSITORY: Not stated in text. | |
| Taxonomic list comments:COVERAGE: Exhaustive for Ammonoidea. NOMENCLATURE: Authoritative publication, but with somewhat antiquated nomenclature. Mostly identified to species resolution. | |
Metadata
| Database number: | 82770 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2008-08-01 10:22:57 | Last modified: | 2020-05-29 21:07:55 |
| Access level: | the public | Released: | 2008-08-01 10:22:57 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27823. | R. A. Reyment. 1955. The Cretaceous Ammonoidea of southern Nigeria and the southern Cameroons. Geological Survey of Nigeria Bulletin 25:1-112 [A. Hendy/A. Hendy] |