East Turkana - Area 1 - KBS - KNM-ER 42700: Gelasian - Calabrian, Kenya
collected by F. K. Manthi 2000

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Tubulidentata - Orycteropodidae
Orycteropus sp. Geoffroy 1791
Lehmann 2008
Mammalia - Primates - Hominidae
Homo erectus (Dubois 1892)
see common names

Geography
Country:Kenya
Coordinates: 4.3° North, 36.3° East (view map)
Paleocoordinates:4.2° North, 36.1° East
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
Key time interval:Gelasian - Calabrian
Age range of interval:2.58800 - 0.78100 m.y. ago
Stratigraphy
Formation:Koobi Fora Member:KBS
Stratigraphic resolution:bed
Stratigraphy comments: from "1.5 m below the Main Ileret Caliche" (boundary between the KBS and Okote members)
above the KBS Tuff (1.869 +/- 0.021 Myr) and below the Lower Ileret Tuff (1.527 +/- 0.14 Myr), but much closer to the latter and well above an ash correlated with a Shungura Formation ash that is just above the Morutot Tuff (1.607 +/- 0.019 Myr); estimated age 1.55 +/- 0.01 "assuming constant sedimentation rates"
Lithology and environment
Primary lithology:coarse,concretionary calcareous sandstone
Lithology description: hominid specimen was "fully embedded in a matrix of coarse sandstones and carbonates... 1.5 m below the Main Ileret Caliiche" ("carbonates" probably refers to carbonate concretions shown at this level in a figure)
Environment:fluvial indet. Tectonic setting:rift
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Collectors:F. K. Manthi Collection dates:2000
Collection method comments: "found in situ": specimen in the Kenya National Museum collection
Taxonomic list comments:well above the main beds yielding other mammals (see collection 21404)
Metadata
Also known as:Ileret
Database number:74511
Authorizer:J. Alroy, M. Uhen Enterer:J. Alroy, M. Uhen
Modifier:G. Varnham Research group:vertebrate
Created:2007-08-09 09:48:49 Last modified:2022-04-05 05:00:15
Access level:the public Released:2007-08-09 09:48:49
Creative Commons license:CC BY
Reference information

Primary reference:

25014. F. Spoor, M. G. Leakey, P. N. Gathogo, F. H. Brown, S. C. Antón, I. McDougall, C. Kiarie, F. K. Manthi, and L. N. Leakey. 2007. Implications of new early Homo fossils from Ileret, east of Lake Turkana, Kenya. Nature 448:688-691 [J. Alroy/J. Alroy]

Secondary references:

32592 T. Lehmann. 2008. Plio-Pleistocene aardvarks (Mammalia, Tubulidentata) from East Africa. Fossil Record 11(2):67-81 [M. Uhen/M. Uhen]