Sample 11447, Colchester Cliff, Algoa Basin: Late/Upper Hauterivian, South Africa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Nodosariata
- Robertinida
- Epistominidae
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Epistomina caracolla sensu lato
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rare category | ||||||
Nodosariata
- Nodosariida
- Nodosariidae
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Vaginulina sp.
d'Orbigny 1826
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rare category | ||||||
Astacolus explicatus sensu lato
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common category | ||||||
Astacolus gibber
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common category | ||||||
Astacolus schloenbachi
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rare category | ||||||
Astacolus calliopsis sensu lato
Reuss 1863
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freqeunt category | ||||||
Planularia madagascariensis sensu lato
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rare category | ||||||
Dentalina communis sensu lato
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common category | ||||||
Dentalina linearis
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few category | ||||||
Dentalina sp.
d'Orbigny 1826
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rare category | ||||||
Citharina austroafricana
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few category | ||||||
Nodosariata
- Vaginulinida
- Vaginulinidae
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Lenticulina nodosa sensu lato
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frequent category | ||||||
Lenticulina sp.
Lamarck 1804
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few category | ||||||
Lenticulina muensteri sensu lato
Bartenstein and Brand 1937
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common category | ||||||
synonym of Lenticulina munsteri | |||||||
Nodosariata
- Polymorphinida
- Polymorphinidae
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Bullopora laevis
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rare category | ||||||
Globulina prisca sensu lato
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common category | ||||||
Eoguttulina anglica sensu lato
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common category | ||||||
unclassified
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Pravoslavlevia frankei
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rare category | ||||||
Pravoslavlevia pravoslavlevi
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rare category | ||||||
Ichthyolariidae
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Lingulonodosaria nodosaria
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rare category | ||||||
Lituolida
- Lituolidae
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Ammobaculites informal sp. B
Cushman 1910
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frequent category | ||||||
Ammobaculites informal sp. C
Cushman 1910
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frequent category | ||||||
Ammobaculites sp.
Cushman 1910
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common category | ||||||
Ammobaculites subaequalis
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abundant category | ||||||
Dorothia sp.
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rare category | ||||||
Lituolida
- Haplophragmoididae
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Haplophragmoides informal sp. B
Cushman 1910
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frequent category | ||||||
Haplophragmoides sp.
Cushman 1910
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frequent category | ||||||
Haplophragmoides informal sp. A
Cushman 1910
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few category | ||||||
Trochamminidae
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Trochammina sp.
Parker and Jones 1859
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rare category | ||||||
Tubothalamea
- Miliolida
- Nubeculariidae
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Nubecularia lucifuga
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rare category | ||||||
see common names |
Geography
Country: | South Africa |
Coordinates: | 33.7° South, 25.8° East (view map) |
Paleocoordinates: | 46.0° South, 10.9° West |
Basis of coordinate: | stated in text |
Geographic resolution: | hand sample |
Time
Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
Stage: | Hauterivian | 10 m.y. bin: | Cretaceous 2 |
Key time interval: | Late/Upper Hauterivian | ||
Age range of interval: | 136.40000 - 130.00000 m.y. ago |
Stratigraphy
Formation: | Sundays River | ||||
Regional section: | Algoa Basin | Regional bed: | 11447 | ||
Regional order: | no particular order | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: This reference: Biozone V: Lower Epistomia hechti Zone ('Total' Range Zone); Foraminifera Zone 3 - Eoguttulina Zone (Venter 1972) |
Lithology and environment
Primary lithology: | fine,gray lithified claystone |
Lithology description: fine gray claystone, no shell, some lignite | |
Environment: | offshore |
Geology comments: outer shelf and uppermost slope environment |
Taphonomy
Size of fossils: | microfossils |
Preservation of anatomical detail: | good |
Abundance in sediment: | abundant |
Collection methods and comments
Collection excludes: | some microfossils | ||
Collection methods: | bulk,chemical,sieve | ||
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: | 70701 | ||
Authorizer: | W. Kiessling | Enterer: | T. Schossleitner |
Modifier: | J. Alroy | Research group: | micropaleontology |
Created: | 2007-04-03 05:39:08 | Last modified: | 2008-05-24 13:31:02 |
Access level: | the public | Released: | 2007-04-03 05:39:07 |
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] |