Upper Herto Member near Bouri, Äthiopien
Fundort: | Upper Herto Member near Bouri, Äthiopien, , Äthiopien | |
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Taxon: | Homo sapiens aus der Familie Hominidae | |
Fossilien und Beschreibung der Fundstelle: | ||
Macrofossils, "bentonite tuff... usually located within 1 m below the the Upper/Lower Herto contact... yields an 40Ar/39Ar age of 260 +/- 16 [1 s.d.] thousand years; "two pumice clasts" from member dated at 163 +/- 3 and 162 +/- 3 kyr, respectively" (anorthoclase), and a third at "226 +/- 2 kyr" (sanidine); "Two obsidian clasts from the same sands" dated at 160 +/- 2 kyr; all of the pumice and obsidian dates are maximum estimates; the overlying WAVT tuff is correlated geochemically with a tuff below the Konso Silver Tuff, which is dated at 154 +/- 7 kyr (sanidine), Member consists of "fluvial and lake-margin deposits of coarse beach and yellow sandstone... Abundant archaeological and faunal remains are embedded in a sand unit at the base of the Upper Herto Member... [it is] a [fluviatile] volcaniclastic sandstone and gravel deposit that yielded all of the Herto hominid fossils and all of the Upper Herto Member archaeological assemblages... variable in thickness, yellow-brown to grey, and cross-bedded, bearing abundant rolled pumices up to 15 cm in diameter." | ||
Geschätztes Alter der Fundstelle: |
zwischen 0,126 und 0,781 Millionen Jahre aus der Bouri Formation in Äthiopien | |
Geologie, Sratigraphie | Middle Pleistocene / Middle Pleistocene / Bouri | |
Koordinaten: | 10° 0 ' 0 '' N, 40° 30 ' 0 '' O | |
Die Daten sowie die folgende Systematik stammen aus der Paleobiology Database, Lizenz
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LiteraturJ. D. Clark, Y. Beyene, G. WoldeGabriel, W. K. Hart, P. R. Renne, H. Gilbert, A. Defleur, G. Suwa, S. Katoh, K. R. Ludwig, J.-R. Boisserie, B. Asfaw, T. D. White 2003, Stratigraphic, chronological and behavioural contexts of Pleistocene Homo sapiens from Middle Awash, Ethiopia. Nature. 423, p. 747 - 752 |
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