Faunal change, environmental variability and late Pliocene hominin evolution.

@article{Bobe2002FaunalCE,
  title={Faunal change, environmental variability and late Pliocene hominin evolution.},
  author={Ren{\'e} Bobe and Anna K. Behrensmeyer and Ralph E. Chapman},
  journal={Journal of human evolution},
  year={2002},
  volume={42 4},
  pages={
          475-97
        }
}
Global change during the late Pliocene was manifested in declining temperatures, increased amplitude of climate cycles, and shifts in the periodicity of orbital climate forcing. Linking these changes to the evolution of African continental faunas and to hominin evolution requires well-documented fossil evidence that can be examined through substantial periods of time. The Omo sequence of southern Ethiopia provides such a database, and we use it to analyze change in the abundances of mammal taxa… Expand
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References

SHOWING 1-10 OF 106 REFERENCES
Responses of African bovids to Pliocene climatic change
TLDR
The results indicate that bovids experienced an increase in species richness and a rapid episode of change in taxonomic abundances at 2.8 ± 0.1 Ma, and that this shift was followed by gradual and prolonged changes in abundance between 2.7 and 2.4 Ma. Expand
Plio-Pleistocene African Climate
TLDR
Major steps in the evolution of African hominids and other vertebrates are coincident with shifts to more arid, open conditions near 2.8 Ma, suggesting that some Pliocene (Plio)-Pleistocene speciation events may have been climatically mediated. Expand
Late pliocene faunal turnover in the turkana basin, kenya and ethiopia
TLDR
Analysis of a large sample of well-dated fossil mammals from localities in the Turkana Basin of Kenya and Ethiopia revealed sampling biases that affect patterns of faunal turnover during the late Pliocene, where 58 to 77 percent of the mammal species were replaced between 3.0 and 1.8 million years ago. Expand
Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska
The principal purpose of this study is to determine from geological and biological evidence how a concentration of fossil bones originated. The Verdigre quarry of earliest Pli— ocene age in theExpand
Combining isotopic and ecomorphological data to refine bovid paleodietary reconstruction: a case study from the Makapansgat Limeworks hominin locality.
TLDR
Recon reconstructions of the diets of seven bovids from Makapansgat Limeworks, South Africa show that in most cases, fossil bovid did have similar diets to their extant relatives, and probably occupied similar habitats. Expand
The Cenozoic of southern Africa
This book is devoted exclusively to the Cenozoic era in southern Africa. The authors explore a variety of themes within this time frame, beginning with the evolution of the major landforms of theExpand
Depositional environments, archeological occurrences and hominids from Members E and F of the Shungura Formation (Omo basin, Ethiopia)
Abstract The several known archeological occurrences from the Shungura Formation (Members E and F) are discussed within the context of their particular depositional and paleoenvironmental settings,Expand
Trends, Rhythms, and Aberrations in Global Climate 65 Ma to Present
TLDR
This work focuses primarily on the periodic and anomalous components of variability over the early portion of this era, as constrained by the latest generation of deep-sea isotope records. Expand
Stratigraphic context of fossil hominids from the Omo group deposits: northern Turkana Basin, Kenya and Ethiopia.
The chronometric framework developed for Plio-Pleistocene deposits of the northern Turkana Basin is reviewed in light of recent advances in lithostratigraphy, geochemical correlation, paleomagneticExpand
Using large mammal communities to examine ecological and taxonomic structure and predict vegetation in extant and extinct assemblages
TLDR
Results indicate that particular types of vegetation have predictable percentages of arboreal, aquatic, frugivorous, grazing, etc. large mammals, which can be used to predict paleovegetation as well as to portray the community structure of fossil assemblages. Expand
...
1
2
3
4
5
...