Sample 12002, Colchester Cliff, Algoa Basin (Cretaceous of South Africa)

Where: South Africa (33.7° S, 25.8° E: paleocoordinates 46.0° S, 10.9° W)

• coordinate stated in text

• hand sample-level geographic resolution

When: Sundays River Formation, Late/Upper Hauterivian (136.4 - 130.0 Ma)

• This reference: Biozone IV: Pseudomorphina cholchesterensis Zone (Total Range Zone); Foraminifera Zone 3 - Eoguttulina Zone (Venter 1972); top Sundays River Fm

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, fine-grained, gray claystone

• outer shelf and uppermost slope environment
• fine gray claystone, no shell, very rare lignite

Size class: microfossils

Collection methods: bulk, chemical, sieve

• 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.

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 70695: authorized by Wolfgang Kiessling, entered by Thomas Schossleitner on 03.04.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• No of specimens: abundant: 50+; frequent: 16-49; common: 6-15; few: 3-5; rare: 1-2
Foraminifera
 Trochamminacea - Trochamminidae
 Ammodiscoidea - Ammodiscidae
Ammodiscus sp. Reuss 1862
 Hormosinacea - Hormosinidae
Reophax sp. Montfort 1808
  -
Nodosariata
 Nodosariida - Nodosariidae
 Polymorphinida - Polymorphinidae
 Vaginulinida - Vaginulinidae
Foraminifera
  -
 Lituolida - Haplophragmoididae
 Lituolida - Lituolidae