Jack Wade Creek: An in situ Alaskan Late Pleistocene Vertebrate Assemblage

ARCTIC ◽  
1986 ◽  
Vol 39 (4) ◽  
Author(s):  
Lee Porter
1988 ◽  
Vol 30 (2) ◽  
pp. 221-231 ◽  
Author(s):  
Lee Ann Kreutzer

Five seasons of excavation in Feature Area 2-1 of the Lubbock Lake Landmark, Texas, exposed a megafaunal bone accumulation in sands and gravels deposited by a late Pleistocene meandering stream. Many bone specimens exhibit evidence of alteration, supporting interpretation of the feature as an in situ, secondary meat-processing area; the gravels are interpreted as the point bar of a meandering stream. Faunal remains lying stratigraphically above the point bar have been considered to form a separate, noncultural feature produced by stream flooding. However, rose diagrams and analysis of adjusted residuals demonstrate that a statistically significant amount of bone in each feature is aligned along axes of preferred orientation. Further, the orientation patterns and statistical analyses of both features exhibit the same trends, suggesting that the same processes affected both. Although the evidence does not rule out a role of human behavior, it does demonstrate that stream currents significantly influenced feature structure.


2003 ◽  
Vol 60 (1) ◽  
pp. 33-43 ◽  
Author(s):  
Paul Matheus ◽  
James Begét ◽  
Owen Mason ◽  
Carol Gelvin-Reymiller

AbstractThe Palisades Site is an extensive silt-loam bluff complex on the central Yukon River preserving a nearly continuous record of the last 2 myr. Volcanic ash deposits present include the Old Crow (OCt; 140,000 yr), Sheep Creek (SCt; 190,000 yr), PA (2.02 myr), EC (ca. 2 myr), and Mining Camp (ca. 2 myr) tephras. Two new tephras, PAL and PAU, are geochemically similar to the PA and EC tephras and appear to be comagmatic. The PA tephra occurs in ice-wedge casts and solifluction deposits, marking the oldest occurrence of permafrost in central Alaska. Three buried forest horizons are present in association with dated tephras. The uppermost forest bed occurs immediately above the OCt; the middle forest horizon occurs below the SCt. The lowest forest bed occurs between the EC and the PA tephras, and correlates with the Dawson Cut Forest Bed. Plant taxa in all three peats are common elements of moist taiga forest found in lowlands of central Alaska today. Large mammal fossils are all from common late Pleistocene taxa. Those recovered in situ came from a single horizon radiocarbon dated to ca. 27,000 14C yr B.P. The incongruous small mammal assemblage in that horizon reflects a diverse landscape with both wet and mesic environments.


2007 ◽  
Vol 50 (1) ◽  
pp. 81-93 ◽  
Author(s):  
Ariane Burke ◽  
Jacques Cinq-Mars

ABSTRACT Bluefish Caves I, II and III of northern Yukon, have yielded the earliest in situ evidence of human occupation of Eastern Beringia, associated with one of the largest and most diverse Late Pleistocene faunas recovered in the region. This paper presents data derived from the study of a large sample of horse teeth recovered from the three caves. This research contributes to our knowledge of the Late Pleistocene Beringian equid, Equus lambei. A comparison of the dentition of E. lambei with that of some contemporary European horses, indicates they have similar size cheekteeth. The hypothesis of a Late Pleistocene trend of size reduction in equids is considered in the light of this comparison.


2005 ◽  
Vol 410 (1-4) ◽  
pp. 173-187 ◽  
Author(s):  
Zs. Ruszkiczay-Rüdiger ◽  
T.J. Dunai ◽  
G. Bada ◽  
L. Fodor ◽  
E. Horváth

2013 ◽  
Vol 62 (1) ◽  
pp. 59-72 ◽  
Author(s):  
Tobias Sprafke ◽  
Birgit Terhorst ◽  
Robert Peticzka ◽  
Christine Thiel

Abstract. Die über 12 m mächtige Löss-Paläoboden-Sequenz in Paudorf (Niederösterreich), ist seit Jahrzehnten bekannt als locus typicus für die „Paudorfer Bodenbildung“. Dieser 1 m mächtige Pedokomplex im obersten Profilabschnitt entwickelte sich eem- bis frühwürmzeitlich. Das differenzierte Lösssediment im Liegenden, mit einem über 2 m mächtigen Pedokomplex im basalen Bereich, stellt ein außergewöhnliches Archiv mittelpleistozäner Landschaftsentwicklung dar. Die paläopedologischen und sedimentologischen Untersuchungen sowie erste mikromorphologische Analysen widmen sich erstmals der Gesamtabfolge und den Prozessen, die zu ihrer Entstehung beitrugen. Farb- und Karbonatanalysen in hoher Auflösung sowie detaillierte Korngrößenanalysen dienen dabei als hilfreiche Datenbasis. Die Untersuchungen zeigen zum einen, dass die Lösssedimente einer komplexen Genese unter periglazialen Bedingungen unterlagen. Neben äolischer Akkumulation spielten (zumeist solifluidale) Umlagerungsprozesse unter Einmischung von lokalem Material ebenso wie in situ Prozesse eine Rolle. Morphodynamisch stabile Phasen sind insbesondere in den beiden Pedokomplexen nachweisbar. In Bereichen, in denen Datierungen vorliegen, können Entwicklungsphasen mit jenen anderer Sequenzen korreliert werden und als klimatische Signale interpretiert werden. Die „Paudorfer Bodenbildung“ ist vermutlich eine frühglaziale Humuszone (MIS 5c[–a?]), die sich in einer solifluidal umgelagerten (MIS 5d) eemzeitliche Braunerde (MIS 5e) gebildet hat. Im Lösssediment konnten Nassböden nachgewiesen werden, wie sie typisch für spätrisszeitliche (MIS 6) Sequenzen sind. Der untere Pedokomplex wurde offenbar über mehrere Warmphasen verschiedener Intensitäten hinweg gebildet und wiederholt von Umlagerungsprozessen und äolischer Sedimentation während Kaltphasen unterbrochen.


Radiocarbon ◽  
2001 ◽  
Vol 43 (3) ◽  
pp. 1167-1178 ◽  
Author(s):  
D Nadel ◽  
S Belitzky ◽  
E Boaretto ◽  
I Carmi ◽  
J Heinemeier ◽  
...  

Unusual low water levels in the Sea of Galilee (Dead Sea Fault, Israel) have caused the recent exposure of submerged Late Pleistocene prehistoric sites and lacustrine sediments along the southern shores of the lake. The Ohalo II site is a large fisher-hunter-gatherers camp with in-situ brush hut floors, hearths, and a human grave. The site is radiometrically dated by 25 charcoal dates to 19,430 BP (average, uncalibrated). The archaeological remains include quantities of excellently preserved organic remains. These would not have been preserved without a rapid rise of lake level immediately after the occupation, covering the remains with silts and sand. Recently a concentration of eight tree trunks were found about 1.5 km south of Ohalo II, of which five trunks were identified as Salix species and dated as a single accumulation at about 16,100 BP. The trunks, too, had to be submerged quickly together to ensure excellent preservation. The camp and the trunks were found at −212/−213 m, almost 4 m below modern high water levels. We suggest that the finds represent two separate episodes of deposition during low lake levels, almost 3,000 radiocarbon years apart, each followed by an abrupt water rise. It is possible that climatic changes caused the observed fluctuations, though earthquakes (blocking or lowering the Jordan outlet, for example) cannot be ruled out.


Radiocarbon ◽  
2020 ◽  
pp. 1-10
Author(s):  
Adrián Pablos ◽  
Nohemi Sala ◽  
Alfonso Arribas

ABSTRACT Pleistocene human remains are rare inland on the Iberian Peninsula. Most are considered Neandertals, but anthropological analyses and direct dating are rare. Recently, we published a study of a navicular from this region found in the Torrejones Cave. The results showed it differed from that of Neandertals and it was re-identified as Homo sapiens. Following the previous stratigraphic and biochronologic descriptions, we suggested that it could correspond to an Upper Paleolithic human, since the navicular was apparently recovered in the Late Pleistocene from an in situ unit. Direct radiocarbon dating from this fossil (4855–5036 cal BP), believed to be the only Paleolithic Homo sapiens from inland Iberia, as well as other hominin and faunal remains from the site, show that the human bones actually date to the Chalcolithic. The unexpectedly recent chronology for the navicular implies that there is no evidence of human fossils from the Upper Paleolithic in Torrejones Cave. Thus, any date from the Middle/Upper Paleolithic human record should be taken with caution until in-depth paleoanthropological, stratigraphical and/or direct dating studies are conducted. Extraordinary caution is recommended when human remains are recovered from apparently Paleolithic units in contexts bearing Holocene sepulchral units on the uppermost levels and/or some evidence of bioturbation.


2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Inger Marie Berg-Hansen ◽  
Karen Wicks ◽  
Steven Mithen

We describe a tanged point and a blade technology from Rubha Port an t-Seilich, Isle of Islay, Scotland that provides further support to a Late Pleistocene or Early Holocene presence in Scotland prior to the establishment of the narrow blade Mesolithic industry. The existing evidence for a Late Pleistocene or early Holocene presence comes from isolated finds of tanged points (Tiree, Shieldig, Brodgar), undated assemblages from disturbed contexts that are most likely Late Pleistocene in date (Howburn, Kilmefort Cave), and undated assemblages containing broad blade microliths (e.g., Glenbatrick, Morton). This article provides a summary of recent excavations and the stratigraphy at Rubha Port an t-Seilich, and a detailed analysis the lithic blade blank production at the site, which is, we believe, the first application of a chaîne opératoire based approach to a Scottish assemblage. The study includes comparisons with contemporary assemblages from north-western Europe. The significance of the Rubha Port an t-Seilich finds is threefold: (1) the relative large size of the assemblage that allows a technological analysis; (2) the finds partially derive from a stratified context below a narrow blade assemblage, associated with radiocarbon dates 9301-7750 cal. BP; and (3) further excavation can increase the sample size and potentially expose an in situ Late Pleistocene or early Holocene cultural horizon.


Terra Nova ◽  
2007 ◽  
Vol 19 (5) ◽  
pp. 331-336 ◽  
Author(s):  
J. Carcaillet ◽  
L. L. Siame ◽  
H.-T. Chu ◽  
D. L. Bourlès ◽  
W.-C. Lu ◽  
...  

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