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 |
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] |