Where: South Africa (33.5° S, 26.9° E: paleocoordinates 42.8° S, 16.5° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Bathurst Formation, Ypresian (56.0 - 47.8 Ma)
• STRATIGRAPHIC RELATIONS: From Alexandria Formation, which unconformably overlies Late Cretaceous Sundays River Fm in places, and is overlain by eolian calcarenites. Unit later subdivided as Bathurst Formation (Le Roux 1989). AGE: Much discussed, although not clearly in text, to range from Miocene to Pleistocene, but also possible Eocene (see Haughton pers. comm., cited in text). King (1972) assigned a Pliocene age, but more recently an undivided Mio-Pliocene range is used. Siesser and Miles (1979) also studied the Birbury microfossils and identified at least 14 species of calcareous nannofossils and six species of planktonic foraminifera. These were mainly Paleogene forms, plus a few longer-ranging types. None were specifically Neogene. Age ranges of several of the nannofossils and foraminifera, especially Morozovella subbotinae and Chiasmolithus solitus overlap, thus indicating an Early Eocene age for the Birbury deposits. STRATIGRAPHIC POSITION: According to Le Roux (1989), nautilids come from a 1 m-thick unit beginning 1.95 m above the base of the outcrop.
• group of beds-level stratigraphic resolution
Environment/lithology: shoreface; poorly lithified, medium-grained, calcareous sandstone
Size class: macrofossils
Collection methods: COLLECTOR: Unknown collector. REPOSITORY: Unknown repository.
Primary reference: A. Ruddock. 1966. The Tertiary limestone of the southern coastal regions of Cape Province, South Africa. Sedimentary Basins of the African Coasts 49-62 [A. Hendy/A. Hendy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 77526: authorized by Austin Hendy, entered by Austin Hendy on 14.01.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Nodosariata | |
Tubothalamea | |
Sigmoilina sp. Schlumberger 1887
Spiroloculina sp. d'Orbigny 1826
Trillina sp. Munier-Chalmas and Schlumberger 1893 | |
Triloculina trigonula Lamarck 1804 | |
Foraminifera | |
"Globigerina conglobata" = Globigerinoides conglobatus, Globigerina bulloides
"Globigerina conglobata" = Globigerinoides conglobatus Brady 1879
Globigerina bulloides d'Orbigny 1826 | |
"Textularia agglutinans" = Textularia jurassica Guembel 1862
Textularia gramen dOrbigny 1846 | |
Nummulites sp. Lamarck 1801 | |
Globothalamea | |
Foraminifera | |
Rhynchonellata | |
Terebratulina sp. d'Orbigny 1847 | |
Gastropoda | |
Cyclostoma indet. Draparnaud 1801 snail | |
Cephalopoda | |
Aturia sp. Bronn 1838 nautiloid | |
Bivalvia | |
Ostrea sp. Linnaeus 1758 oyster | |
Pecten sp. Müller 1776 scallop | |
Deuteropoda | |
Ostracoda indet. Latreille 1802 ostracod |