scholarly journals Middle and Late Pleistocene terrestrial snails from the Middle Dniester area, Ukraine (based on Mykola Kunytsia’s collections)

2021 ◽  
Vol 65 (1) ◽  
Author(s):  
Yana POPIUK ◽  
Bogdan RIDUSH ◽  
Tatiana SOLOVEY
Keyword(s):  
Late Pleistocene ◽  
Terrestrial Snails ◽  
Middle And Late Pleistocene

Pleistocene ungulates from the Bow River gravels at Cochrane, Alberta

1968 ◽  
Vol 5 (6) ◽  
pp. 1467-1488 ◽  
Author(s):  
C. S. Churcher
Keyword(s):  
United States ◽  
Late Pleistocene ◽  
Rangifer Tarandus ◽  
Ovis Canadensis ◽  
Southern United States ◽  
Rangifer Tarandus Caribou ◽  
Cervus Canadensis ◽  
North Bank ◽  
Middle And Late Pleistocene

Five ungulates are reported from gravels comprising the second major terrace above the Bow River's north bank at Cochrane, Alberta. These ungulates are Cervus canadensis (wapiti), Rangifer tarandus (caribou), Ovis canadensis (mountain sheep), Bison occidentalis (extinct western bison), and Equus conversidens (extinct Mexican ass). E. conversidens was previously known from middle and late Pleistocene beds of the southern United States and Mexico and is here reported from the post-Wisconsin Pleistocene of Alberta and possibly Saskatchewan. Radiocarbon analysis of Bison bones from the gravels yielded two dates that averaged 11 065 B.P.

scholarly journals Glacial history and palaeo-environmental change of southern Taimyr Peninsula, Arctic Russia, during the Middle and Late Pleistocene

2019 ◽  
Vol 196 ◽  
pp. 102832 ◽  
Author(s):  
Per Möller ◽  
Ívar Örn Benediktsson ◽  
Johanna Anjar ◽  
Ole Bennike ◽  
Martin Bernhardson ◽  
...  
Keyword(s):  
Environmental Change ◽  
Late Pleistocene ◽  
Taimyr Peninsula ◽  
Glacial History ◽  
Middle And Late Pleistocene ◽  
Arctic Russia

scholarly journals Gigantic lion, Panthera leo, from the Pleistocene of Natodomeri, eastern Africa

2017 ◽  
Vol 92 (2) ◽  
pp. 305-312 ◽  
Author(s):  
Fredrick K. Manthi ◽  
Francis H. Brown ◽  
Michael J. Plavcan ◽  
Lars Werdelin
Keyword(s):  
Late Pleistocene ◽  
Eastern Africa ◽  
Size Increase ◽  
Panthera Leo ◽  
Great Size ◽  
Middle And Late Pleistocene

AbstractThe partial skull of a lion from Natodomeri, northwest Kenya is described. The Natodomeri sites are correlated with Member I of the Kibish Formation, dated to between 195 ka and ca. 205 ka. The skull is remarkable for its very great size, equivalent to the largest cave lions (Panthera spelaea [Goldfuss, 1810]) of Pleistocene Eurasia and much larger than any previously known lion from Africa, living or fossil. We hypothesize that this individual represents a previously unknown population or subspecies of lion present in the late Middle and Late Pleistocene of eastern Africa rather than being an indication of climate-driven size increase in lions of that time. This raises questions regarding the extent of our understanding of the pattern and causes of lion evolution in the Late Pleistocene.

Soft rock pediments in South Moravia, Czech Republic

2012 ◽  
Vol 91 (1-2) ◽  
pp. 215-222 ◽  
Author(s):  
T. Czudek
Keyword(s):  
Czech Republic ◽  
Environmental Factors ◽  
Late Pleistocene ◽  
Soft Rock ◽  
Agricultural Landscapes ◽  
Cold Climate ◽  
Middle And Late Pleistocene ◽  
South Moravia

AbstractSoft rock pediments developed in South Moravia in some places as early as the Tertiary, in other places as late as the Pleistocene. Depending on local environmental factors the pediments developed either due to backwearing or downwearing. The most suitable conditions for the evolution of the Pleistocene pediments were during transitional periods between warm and cold climate phases and especially during periglacial conditions between cold and warm periods in the Middle and Late Pleistocene. In agricultural landscapes, the studied relief features continue to develop also at present.

Reliable Late-Pleistocene Stratigraphic Ages and Shorter Groundwater Travel Times from14C in Fossil Snails from the Southern Great Basin

1997 ◽  
Vol 47 (3) ◽  
pp. 329-336 ◽  
Author(s):  
Robert Brennan ◽  
Jay Quade
Keyword(s):  
Great Basin ◽  
Late Pleistocene ◽  
Late Glacial ◽  
High Water ◽  
Land Snails ◽  
Nuclear Waste Repository ◽  
Travel Times ◽  
Terrestrial Snails ◽  
Geologic Record ◽  
High Level

Both aquatic and land snails are common in the geologic record, but their utility in dating is greatly restricted by their well-documented tendency to yield14C dates inconsistent with true14C ages. In this study, we examine the use of14C ages from (1) small, previously unstudied, terrestrial snails to date hosting spring deposits and from (2) cooccuring aquatic snails to constrain groundwater travel times during the last glacial period. Our study area in the southern Great Basin encompasses Yucca Mountain, site of the proposed high-level nuclear waste repository, where information on the age and extent of past high water tables and on groundwater flow times is crucial to several licensing issues. Our results show that shells of small terrestrial snails belonging toValloniasp. yield14C dates consistent with14C ages of associated carbonized wood. These results imply that these taxa can provide reliable14C age control on the broadly distributed deposits in which they have been described. In contrast, cooccurring aquatic snails from fossil spring deposits yield14C ages generally greater than the control age. This is because the aquatic shells often formed in spring waters that had an initial14C deficiency. However, the magnitude of the deficiency is much less than that observed in nearby modern springs, arguing for much higher average14C contents in late Pleistocene groundwaters in these basins. If representative, this implies shorter groundwater travel times through aquifers in southern Nevada during late-glacial time.

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