Locality A [Alphard Gp]: Early Coniacian, South Africa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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Cephalopoda
- Ammonitida
- Scaphitidae
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Scaphites (? Otoscaphites) sp.
(Wright 1953)
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2 specimens | ||||||
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Cephalopoda
- Ammonitida
- Placenticeratidae
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Proplacenticeras kaffrarium
(Etheridge 1904)
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1 specimen | ||||||
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Bivalvia
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Bivalvia indet.
Linnaeus 1758
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| see common names | |||||||
Geography
| Country: | South Africa |
| Coordinates: | 35.2° South, 20.5° East (view map) |
| Paleocoordinates: | 50.5° South, 1.4° East |
| Basis of coordinate: | stated in text |
| Altitude: | -197 meters |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Coniacian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Early Coniacian | ||
| Age range of interval: | 89.8 - 86.3 m.y. ago |
Stratigraphy
| Geological group: | Alphard | Formation: | Saint Lucia | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unnamed formation within the Alphard Group. AGE: Early Coniacian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From concretion exposed on seafloor surface. PJW: This should now be Saint Lucia formation of Zululand Group. | |||||
Lithology and environment
| Primary lithology: | bioturbation,fine,concretionary,gray,green lithified "limestone" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Dark greyish green, fine-grained limestone concretion, highly bioturbated, lacking bedding structures. LITHIFICATION: | |
| Environment: | carbonate indet. |
| Geology comments: ENVIRONMENT: Shallow marine carbonate setting. | |
Taphonomy
| Modes of preservation: | body,concretion,original aragonite |
| Size of fossils: | macrofossils |
| Bioerosion: | none |
| Encrustation: | none |
Collection methods and comments
| Collection methods: | surface (float),survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: COLLECTOR: Marine Geosciences Unit, University of Cape Town. COLLECTOR: Marine Geosciences Unit, University of Cape Town. | |
| Taxonomic list comments:COVERAGE: Exhaustive for ammonites, bivalves, and gastropods. NOMENCLATURE: An authoritative publication, with relatively modern nomenclature, and species-resolution identifications preservation permitting. | |
Metadata
| Also known as: | TBD 310 | ||
| Database number: | 82505 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2008-07-28 10:06:19 | Last modified: | 2024-04-28 19:01:46 |
| Access level: | the public | Released: | 2008-07-28 10:06:19 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 27786. | H. C. Kinger and W., J. Kennedy. 1980. Upper Cretaceous ammonites and inoceramids from the off-shore Alphard Group of South Africa. Annals of the South African Museum 82(7):293-320 [A. Hendy/A. Hendy] |