East Turkana - Area 8A - General: Gelasian - Calabrian, Kenya

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Dipnomorpha - Lepidosirenidae
Protopterus sp. Agassiz 1843
Reptilia - Testudines - Trionychidae
Reptilia - Testudines - Testudinidae
Geochelone sp. Fitzinger 1835
Reptilia
Euthecodon brumpti (Joleaud 1920)
original and current combination Tomistoma brumpti
Crocodylus sp. Laurenti 1768
Crocodylus niloticus Laurenti 1768
Mammalia - Primates - Cercopithecidae
Theropithecus oswaldi (Andrews 1916)
Cercocebus sp. Geoffroy 1812
Colobus sp. Illiger 1811
Cladistia - Polypteriformes - Polypteridae
Polypterus sp. Lacépède 1803
Actinopteri - Siluriformes - Clariidae
Clarias sp. Scopoli 1777
Actinopteri - Centropomidae
Lates sp. Cuvier 1828
see common names

Geography
Country:Kenya
Coordinates: 4.3° North, 36.3° East (view map)
Paleocoordinates:4.2° North, 36.1° East
Geographic resolution:basin
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
*Period:Tertiary - Quaternary *Epoch:Pliocene - Pleistocene
Key time interval:Gelasian - Calabrian
Age range of interval:2.58000 - 0.77400 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Koobi Fora Member:Indet.
Stratigraphy comments: ETE dating method: absolute, ETE age comment: max = KBS Tuff (1.88+-.02ma). min = top of Chari Member (.74 +-.01ma)

see McDougall abd Brown 2006 for detailed breakdown of 40Ar/39Ar dated tuff layers in Koobi Fora Formation.
Lithology and environment
Primary lithology: tuff
Environment:terrestrial indet. Tectonic setting:rift
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:bulk,surface (in situ)
Collection size:12 specimens
Reason for describing collection:taxonomic analysis
Collection method comments: ETE Size: macro; ETE reference list: 88, ; ETE museum list: KNM
Metadata
Also known as:ETE Locality 337, Area 8A - General,
Database number:21522
Authorizer:A. Behrensmeyer Enterer:A. Behrensmeyer
Modifier:G. Varnham Research group:vertebrate
Created:1994-05-16 00:00:00 Last modified:2022-04-05 04:56:25
Access level:the public Released:1994-05-16 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
4447.ETE 81M. G. Leakey. 1982. Extinct large Colobines from the Plio-Pleistocene of Africa. American Journal of Physical Anthropology 58:153-172 [A. Behrensmeyer/A. Behrensmeyer/M. Kosnik]

Secondary references:

79449 I. McDougall and F. H. Brown. 2006. Precise 40Ar/39Ar geochronology for the upper Koobi Fora Formation, Turkana Basin, northern Kenya. Journal of the Geological Society 163:205-220 [P. Mannion/G. Varnham/G. Varnham]