Connecting local environmental sequences to global climate patterns: evidence from the hominin-bearing Hadar Formation, Ethiopia

Campisano, Christopher J.; Feibel, Craig S.

doi:10.1016/j.jhevol.2007.05.015

Cited by 71 publications

(31 citation statements)

References 55 publications

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“…While this explanation is not inconsistent with the data reported here, the different temporal spans in each sub-unit, and the variation in sample sizes for each unit make it difficult to directly correlate habitat fluctuations with global changes in insolation patterns driven by orbital dynamics. Furthermore, processes acting on smaller geographic scales (e.g., regional tectonics) complicate attempts to link local habitats with global climate forcing (Campisano and Feibel, 2007).…”

Section: Discussionmentioning

confidence: 99%

Paleoenvironments of the Shungura Formation (Plio-Pleistocene: Ethiopia) based on ecomorphology of the bovid astragalus

Barr

2015

Journal of Human Evolution

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Section: Discussionmentioning

confidence: 99%

Paleoenvironments of the Shungura Formation (Plio-Pleistocene: Ethiopia) based on ecomorphology of the bovid astragalus

Barr

2015

Journal of Human Evolution

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“…Shipman and Harris (1988); 21. Campisano and Feibel (2007) is more important than co-location per se, we do not regard this as a major issue, although future studies might consider exploring it in more detail. We then took any missing climate variables for each fossil site from the climate data and tree cover for the closest matched modern site.…”

Section: Climate Datamentioning

confidence: 94%

Modeling the Biogeography of Fossil Baboons

Bettridge

Dunbar

2011

Int J Primatol

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We use a model of modern baboon socio-ecology to explore the behavioral ecology and biogeography of the extinct Plio-Pleistocene baboons (genera Parapapio, Gorgopithecus, Dinopithecus, and Papio). The model is based on the way climate affects the baboons' time budgets, and focuses on intersite variability in behavior rather than on species-typical patterns of behavior, as most previous approaches have done. We use climate estimates for individual fossil sites based on matching modern habitats using faunal profiles and estimates of individual species' body masses given in the literature. The model allows us to examine the minimum and maximum sizes of groups that individual species would have been able to support at particular localities, and hence the biogeography of a species on a continental scale. In doing so, the model allows us to examine which variables are most responsible for limiting a species' ecological and biogeographic flexibility, and through this to explore a species' capacity for coping with climate change. Feeding time is identified as the main constraint. In general, largebodied species would have had more difficulty surviving in as wide a range of habitats as smaller-bodied species, and this may explain the limited geographical distribution of large-bodied baboons such as Gorgopithecus and Dinopithecus.

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“…This strategy targeted critical intervals in human evolutionary history from the Pliocene (~3.6 Ma) (Cohen et al 2009(Cohen et al , 2016. This investigation focuses on novel diatom species revealed from the Pliocene Hadar Formation (2.9-3.8 Ma) Afar Region, Ethiopia (Campisano & Feibel 2007). The Hadar Formation and temporal equivalent sediments are preserved across multiple important paleoanthropological sites in the lower Awash valley (e.g., Hadar, Dikika, Gona, Woranso-Mille, LediGeraru) and contain a rich paleontological record including that of early hominins, particularly Australopithecus afarensis (Campisano & Feibel 2008;Dupont-Nivet et al 2008;Kimbel & Delezene 2009;Quade et al 2008;Saylor et al 2016;Wynn et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Three novel species of Bacillariophyta (Diatoms) belonging to Aulacoseira and Lindavia from the Pliocene Hadar Formation, Afar Depression of Ethiopia

2016

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Paleolake Hadar was an expansive lake in the lower Awash Valley of Ethiopia's Afar Depression that existed periodically through the Late Pliocene. The sedimentary deposits from this ancient lake (Hadar Formation) have broad importance because a significant number of hominin fossils have been recovered from the formation. Samples of the Hadar Formation lacustrine sequence were collected from sediment cores extracted as part of the Hominin Sites and Paleolakes Drilling Project (HSPDP). A paleoecological study of the HSPDP Northern Awash (Hadar Formation) material has unearthed three novel species of Bacillariophyta (diatoms) from diatomites that appear periodically in the cores. The Hadar Formation assemblage represents a newly revealed excerpt from the evolutionary history of freshwater diatoms in East Africa during the Piacenᴢian age (2.59-3.60 Ma). The HSPDP Northern Awash diatom species are compared to previously reported diatoms from Pliocene outcrops, modern and fossil core material from Lake Malawi, and extant species. Here we describe two new species of Aulacoseira and one of Lindavia. Taxonomic treatment of two diatom varieties reported by previous researchers as Melosira are transferred into Aulacoseira herein.

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Connecting local environmental sequences to global climate patterns: evidence from the hominin-bearing Hadar Formation, Ethiopia

Cited by 71 publications

References 55 publications

Paleoenvironments of the Shungura Formation (Plio-Pleistocene: Ethiopia) based on ecomorphology of the bovid astragalus

Paleoenvironments of the Shungura Formation (Plio-Pleistocene: Ethiopia) based on ecomorphology of the bovid astragalus

Modeling the Biogeography of Fossil Baboons

Three novel species of Bacillariophyta (Diatoms) belonging to Aulacoseira and Lindavia from the Pliocene Hadar Formation, Afar Depression of Ethiopia

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