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
Epistomina caracolla sensu lato
rare category
Nodosariata - Nodosariida - Nodosariidae
Vaginulina sp. d'Orbigny 1826
rare category
Astacolus explicatus sensu lato
common category
Astacolus gibber
common category
Astacolus schloenbachi
rare category
Astacolus calliopsis sensu lato Reuss 1863
freqeunt category
Planularia madagascariensis sensu lato
rare category
Dentalina communis sensu lato
common category
Dentalina linearis
few category
Dentalina sp. d'Orbigny 1826
rare category
Citharina austroafricana
few category
Nodosariata - Vaginulinida - Vaginulinidae
Lenticulina nodosa sensu lato
frequent category
Lenticulina sp. Lamarck 1804
few category
Lenticulina muensteri sensu lato Bartenstein and Brand 1937
common category
synonym of Lenticulina munsteri
Nodosariata - Polymorphinida - Polymorphinidae
Bullopora laevis
rare category
Globulina prisca sensu lato
common category
Eoguttulina anglica sensu lato
common category
unclassified
Pravoslavlevia frankei
rare category
Pravoslavlevia pravoslavlevi
rare category
Ichthyolariidae
Lingulonodosaria nodosaria
rare category
Lituolida - Lituolidae
Ammobaculites informal sp. B Cushman 1910
frequent category
Ammobaculites informal sp. C Cushman 1910
frequent category
Ammobaculites sp. Cushman 1910
common category
Ammobaculites subaequalis
abundant category
Dorothia sp.
rare category
Lituolida - Haplophragmoididae
Haplophragmoides informal sp. B Cushman 1910
frequent category
Haplophragmoides sp. Cushman 1910
frequent category
Haplophragmoides informal sp. A Cushman 1910
few category
Trochamminidae
Trochammina sp. Parker and Jones 1859
rare category
Tubothalamea - Miliolida - Nubeculariidae
Nubecularia lucifuga
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]