Sample 11984, Zoetgeneugd Cliff, Algoa Basin: Late/Upper Valanginian, South Africa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Nodosariata
- Nodosariida
- Nodosariidae
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Frondicularia sp.
Defrance 1824
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rare category | ||||||
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unclassified
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Pravoslavlevia pravoslavlevi
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rare category | ||||||
| see common names | |||||||
Geography
| Country: | South Africa |
| Coordinates: | 33.6° South, 25.6° East (view map) |
| Paleocoordinates: | 45.1° South, 11.5° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | hand sample |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Valanginian | 10 m.y. bin: | Cretaceous 1 |
| Key time interval: | Late/Upper Valanginian | ||
| Age range of interval: | 139.80000 - 132.60000 m.y. ago |
Stratigraphy
| Formation: | Sundays River | ||||
| Regional section: | Algoa Basin | Regional bed: | 11984 | ||
| Regional order: | no particular order | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: This reference: Biozone Bb: Sculptobaculites goodlandensis Zone (PArtial Range Zone); Foraminifera Zone 6/7 - Epistomia caracolla/Interzone (Venter 1972); basal Sundays River Fm | |||||
Lithology and environment
| Primary lithology: | gray lithified silty claystone |
| Lithology description: slightly silty gray claystone, rare shell, rare lignite | |
| Environment: | marginal marine indet. |
| Geology comments: accumulated in a marginal marine and estuarine environment; freshwater influence remained strong | |
Taphonomy
| Size of fossils: | microfossils |
Collection methods and comments
| Collection excludes: | some macrofossils,some microfossils | ||
| Collection methods: | bulk,chemical,survey of museum collection | ||
| Minimum sieve size: | 0.106 | Maximum sieve size: | 0.500 |
| Rock censused: | 250 g | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collection method comments: samples were collected by I.R. McLachlan and C. Reabow; all specimens have been deposited in the collections of the South African Museum, Cape Town, catalouge numbers prefixed SAM-PQ-MF; original assemblage slides housed in the microfossil slide collections in SOEKOR (Pty) Ltd., in Parow, Cape Town. | |||
| Taxonomic list comments:No of specimens: abundant: 50+; frequent: 16-49; common: 6-15; few: 3-5; rare: 1-2 | |||
Metadata
| Database number: | 70986 | ||
| Authorizer: | W. Kiessling | Enterer: | T. Schossleitner |
| Modifier: | J. Alroy | Research group: | micropaleontology |
| Created: | 2007-04-13 01:32:47 | Last modified: | 2008-05-24 13:31:24 |
| Access level: | the public | Released: | 2007-04-13 01:32:45 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 23576. | I.K. McMillan. 2003. The Foraminifera of the Late Valangian to Hautverian (Early Cretaceous) Sundays River Formation of the Algoa Basin, Eastern Cape Province, South Africa. Annals of the South African Museum 106:1-274 [W. Kiessling/T. Schossleitner] |