Matches in SemOpenAlex for { <https://semopenalex.org/work/W2116445462> ?p ?o ?g. }
- W2116445462 endingPage "745" @default.
- W2116445462 startingPage "731" @default.
- W2116445462 abstract "To address questions regarding the evolutionary origin, radiation and dispersal of the genus Homo, it is crucial to be able to place the occurrence of hominin fossils in a high-resolution chronological framework. The period around 2 Ma (millions of years ago) in eastern Africa is of particular interest as it is at this time that a more substantial fossil record of the genus Homo is first found. Here we combine magnetostratigraphy and strontium (Sr) isotope stratigraphy to improve age control on hominin-bearing upper Burgi (UBU) deposits in Areas 105 and 131 on the Karari Ridge in the eastern Turkana Basin (Kenya). We identify the base of the Olduvai subchron (bC2n) plus a short isolated interval of consistently normal polarity that we interpret to be the Pre-Olduvai event. Combined with precession-forced (~20 kyr [thousands of years]) wet-dry climate cycles resolved by Sr isotope ratios, the magnetostratigraphic data allow us to construct an age model for the UBU deposits. We provide detailed age constraints for 15 hominin fossils from Area 131, showing that key specimens such as cranium KNM-ER 1470, partial face KNM-ER 62000 and mandibles KNM-ER 1482, KNM-ER 1801, and KNM-ER 1802 can be constrained between 1.945 ± 0.004 and 2.058 ± 0.034 Ma, and thus older than previously estimated. The new ages are consistent with a temporal overlap of two species of early Homo that can be distinguished by their facial morphology. Further, our results show that in this time interval, hominins occurred throughout the wet-dry climate cycles, supporting the hypothesis that the lacustrine Turkana Basin was a refugium during regionally dry periods. By establishing the observed first appearance datum of a marine-derived stingray in UBU deposits at 2.058 ± 0.034 Ma, we show that at this time the Turkana Basin was hydrographically connected to the Indian Ocean, facilitating dispersal of fauna between these areas. From a biogeographical perspective, we propose that the Indian Ocean coastal strip should be considered as a possible source area for one or more of the multiple Homo species in the Turkana Basin from over 2 Ma onwards." @default.
- W2116445462 created "2016-06-24" @default.
- W2116445462 creator A5006751458 @default.
- W2116445462 creator A5011094487 @default.
- W2116445462 creator A5014818729 @default.
- W2116445462 creator A5037463292 @default.
- W2116445462 creator A5039775356 @default.
- W2116445462 creator A5049186999 @default.
- W2116445462 creator A5062230686 @default.
- W2116445462 creator A5069621379 @default.
- W2116445462 creator A5072245599 @default.
- W2116445462 creator A5074247543 @default.
- W2116445462 date "2013-12-01" @default.
- W2116445462 modified "2023-10-06" @default.
- W2116445462 title "Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya" @default.
- W2116445462 cites W1612052864 @default.
- W2116445462 cites W1889031242 @default.
- W2116445462 cites W1965460310 @default.
- W2116445462 cites W1973954953 @default.
- W2116445462 cites W1974559598 @default.
- W2116445462 cites W1974768401 @default.
- W2116445462 cites W1978754453 @default.
- W2116445462 cites W1980576219 @default.
- W2116445462 cites W1981031381 @default.
- W2116445462 cites W1985279464 @default.
- W2116445462 cites W1993588553 @default.
- W2116445462 cites W1994411951 @default.
- W2116445462 cites W1994981345 @default.
- W2116445462 cites W1996145910 @default.
- W2116445462 cites W1997760482 @default.
- W2116445462 cites W1998654766 @default.
- W2116445462 cites W2008527481 @default.
- W2116445462 cites W2011626335 @default.
- W2116445462 cites W2014108658 @default.
- W2116445462 cites W2031892134 @default.
- W2116445462 cites W2035303748 @default.
- W2116445462 cites W2035682383 @default.
- W2116445462 cites W2042034616 @default.
- W2116445462 cites W2042983786 @default.
- W2116445462 cites W2053190053 @default.
- W2116445462 cites W2054152166 @default.
- W2116445462 cites W2059919830 @default.
- W2116445462 cites W2063091092 @default.
- W2116445462 cites W2067032586 @default.
- W2116445462 cites W2069593748 @default.
- W2116445462 cites W2069594388 @default.
- W2116445462 cites W2070185158 @default.
- W2116445462 cites W2071334216 @default.
- W2116445462 cites W2071409210 @default.
- W2116445462 cites W2080665292 @default.
- W2116445462 cites W2082020770 @default.
- W2116445462 cites W2089979298 @default.
- W2116445462 cites W2093693938 @default.
- W2116445462 cites W2094584790 @default.
- W2116445462 cites W2104584561 @default.
- W2116445462 cites W2105844813 @default.
- W2116445462 cites W2112170567 @default.
- W2116445462 cites W2113176199 @default.
- W2116445462 cites W2115745090 @default.
- W2116445462 cites W2118204502 @default.
- W2116445462 cites W2118341878 @default.
- W2116445462 cites W2126456782 @default.
- W2116445462 cites W2127633016 @default.
- W2116445462 cites W2130489480 @default.
- W2116445462 cites W2138477425 @default.
- W2116445462 cites W2140477756 @default.
- W2116445462 cites W2142015956 @default.
- W2116445462 cites W2147837976 @default.
- W2116445462 cites W2149277645 @default.
- W2116445462 cites W2150986613 @default.
- W2116445462 cites W2170367773 @default.
- W2116445462 cites W2784291219 @default.
- W2116445462 cites W4229849167 @default.
- W2116445462 cites W4306293736 @default.
- W2116445462 doi "https://doi.org/10.1016/j.jhevol.2013.09.002" @default.
- W2116445462 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24134960" @default.
- W2116445462 hasPublicationYear "2013" @default.
- W2116445462 type Work @default.
- W2116445462 sameAs 2116445462 @default.
- W2116445462 citedByCount "45" @default.
- W2116445462 countsByYear W21164454622014 @default.
- W2116445462 countsByYear W21164454622015 @default.
- W2116445462 countsByYear W21164454622016 @default.
- W2116445462 countsByYear W21164454622017 @default.
- W2116445462 countsByYear W21164454622018 @default.
- W2116445462 countsByYear W21164454622019 @default.
- W2116445462 countsByYear W21164454622020 @default.
- W2116445462 countsByYear W21164454622021 @default.
- W2116445462 countsByYear W21164454622022 @default.
- W2116445462 countsByYear W21164454622023 @default.
- W2116445462 crossrefType "journal-article" @default.
- W2116445462 hasAuthorship W2116445462A5006751458 @default.
- W2116445462 hasAuthorship W2116445462A5011094487 @default.
- W2116445462 hasAuthorship W2116445462A5014818729 @default.
- W2116445462 hasAuthorship W2116445462A5037463292 @default.
- W2116445462 hasAuthorship W2116445462A5039775356 @default.
- W2116445462 hasAuthorship W2116445462A5049186999 @default.
- W2116445462 hasAuthorship W2116445462A5062230686 @default.