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East Turkana - Area 1 - KBS - KNM-ER 42700 (Pleistocene of Kenya)

Also known as Ileret

Where: Kenya (4.3° N, 36.3° E: paleocoordinates 4.2° N, 36.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: KBS Member (Koobi Fora Formation), Early/Lower Pleistocene (2.6 - 0.8 Ma)

• 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"

• bed-level stratigraphic resolution

Environment/lithology: fluvial; coarse-grained, concretionary, calcareous sandstone

• 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)

Size class: macrofossils

Collected by F. K. Manthi in 2000

Collection methods: surface (in situ),

• "found in situ": specimen in the Kenya National Museum collection

Primary reference: 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] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 74511: authorized by John Alroy, entered by John Alroy on 09.08.2007, edited by Mark Uhen

Creative Commons license: CC BY (attribution)