New hominid fossils from the Koobi Fora formation in Northern Kenya

Nature ◽  
1976 ◽  
Vol 261 (5561) ◽  
pp. 574-576 ◽  
Author(s):  
R. E. F. LEAKEY
Keyword(s):  
Koobi Fora ◽  
Northern Kenya ◽  
Hominid Fossils

A New and Open CoiledValvata(Gastropoda) from the Pliocene Koobi Fora Formation of the Turkana Basin, Northern Kenya

2010 ◽  
Vol 84 (5) ◽  
pp. 996-1002 ◽  
Author(s):  
Henning Scholz ◽  
Matthias Glaubrecht
Keyword(s):  
New Species ◽  
Environmental Stress ◽  
Environmental Conditions ◽  
Lake Level ◽  
Shell Morphology ◽  
Koobi Fora ◽  
Northern Kenya ◽  
Turkana Basin ◽  
High Level ◽  
Stratigraphic Interval

New field collections allow the study and description ofValvata juliaenew species from the Pliocene upper Burgi Member of the Koobi Fora Formation of Kenya. The shell morphology of this species varies from trochospiral to planispiral to open coiled. The species is restricted to a short stratigraphic interval.Valvata juliaeis considered as an invader of the Turkana Basin during a lacustrine transgression event. The open coiling of the species is interpreted as an ecophenotypic response to a high level of environmental stress caused by lake level fluctuations and emergence of delta systems. These environmental conditions broughtValvata juliaeto extinction soon after it invaded the Turkana Basin.

FxJj43: A window into a 1.5-million-year-old palaeolandscape in the Okote Member of the Koobi Fora Formation, northern Kenya

2002 ◽  
Vol 17 (4) ◽  
pp. 349-392 ◽  
Author(s):  
Nicola Stern ◽  
Nicholas Porch ◽  
Ian McDougall
Keyword(s):  
Koobi Fora ◽  
Northern Kenya

Shell and operculum taphonomy of the bithyniid gastropodGabbiellain the Pleistocene Turkana Basin, North Kenya

2013 ◽  
Vol 87 (1) ◽  
pp. 84-90
Author(s):  
Henning Scholz ◽  
Matthias Glaubrecht
Keyword(s):  
Relative Abundance ◽  
Fossil Record ◽  
Mesh Size ◽  
Koobi Fora ◽  
Morphological Comparison ◽  
Northern Kenya ◽  
Turkana Basin ◽  
Systematic Paleontology ◽  
Preservation Potential ◽  
Mollusk Assemblages

Shells and opercula of bithyniid gastropods assigned toGabbiellaare found in high abundance in the Pleistocene upper Burgi and KBS Members of the Koobi Fora Formation, Turkana Basin, northern Kenya. The systematic paleontology of the Turkana BasinGabbiellais revised herein based on morphological comparison with the opercula of other Recent African bithyniids. The fossils from the upper Burgi and KBS Members are here assigned toGabbiella roseaMandahl-Barth, 1968, a species not known from the Turkana fossil record before, but extant in this lake today. A sampling and taphonomic bias is identified which influences the relative abundance ofGabbiellashells and opercula, as a mesh size of 0.63 mm or less is necessary to capture all opercula preserved in the sediments. Accordingly, opercula were found to be significantly more abundant than shells, indicating a different preservation potential of shells and opercula, as the calcitic operculum is more robust than the aragonitic shell. In contrast to previous arguments that most shellbeds in the Turkana Basin sequence represent undisturbed life assemblages, a taphonomic bias is clearly evident reducing the fidelity of the Turkana Basin mollusk assemblages.

New fossils from Koobi Fora in northern Kenya confirm taxonomic diversity in early Homo

Nature ◽  
2012 ◽  
Vol 488 (7410) ◽  
pp. 201-204 ◽  
Author(s):  
Meave G. Leakey ◽  
Fred Spoor ◽  
M. Christopher Dean ◽  
Craig S. Feibel ◽  
Susan C. Antón ◽  
...  
Keyword(s):  
Taxonomic Diversity ◽  
Koobi Fora ◽  
Northern Kenya ◽  
Early Homo

Early Hominin Activity Traces at FxJj43, a One and a Half Million Year Old Locality in the Koobi Fora Formation, in Northern Kenya: a Field Report

2004 ◽  
Vol 70 ◽  
pp. 233-258 ◽  
Author(s):  
Nicola Stern
Keyword(s):  
Small Scale ◽  
Time Averaging ◽  
Stone Age ◽  
Koobi Fora ◽  
Northern Kenya ◽  
Chipped Stone ◽  
Early Stone Age ◽  
New Research ◽  
Field Report ◽  
The Impact

FxJj43 is one of a series of Early Stone Age archaeological sites preserved in the Okote Member of the Koobi Fora Formation, in northern Kenya. It is the focus of a new research project that aims to explore the impact of time-averaging on the composition and characteristics of Early Stone Age archaeological assemblages. FxJj43 lends itself particularly well to this exercise because, unlike other sites in the Okote Member, it preserves a laterally extensive set of interlocking landforms. These include part of a sandy river channel, its southern bank, levee, and adjacent floodplain.Chipped stone artefacts and broken-up animal bones occur in clusters of varying size and density all the way along the 200 m long strip of outcrops containing the remnants of these landforms. Small-scale excavations aimed at investigating the characteristics of archaeological assemblages preserved in different palaeotopographic settings, and in clusters of varying size and density, suggest the existence of archaeological occurrences representing different amounts of overprinting. This underscores the long-term research potential of this locality for exploring the relationship between the material remains of individual behavioural events and agglomerations of debris resulting from many, often unrelated sets of activities.

Fossil fish nests from the Koobi Fora Formation (Plio-Pleistocene) of northern Kenya

1987 ◽  
Vol 61 (1) ◽  
pp. 130-134 ◽  
Author(s):  
Craig S. Feibel
Keyword(s):  
Trace Fossil ◽  
Koobi Fora ◽  
Northern Kenya ◽  
Fossil Fish

Piscichnus brownii n. gen. and sp. is described from the Plio-Pleistocene Koobi Fora Formation of northern Kenya. The trace fossil is an unornamented, shallow, dish-shaped structure preserved in concave epirelief on sandstones. This structure is interpreted to result from the nest-excavating activities of fish.

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