نتایج جستجو برای: pleistocene
تعداد نتایج: 8977 فیلتر نتایج به سال:
Specimens of fossil gopher tortoises (Gopherus) were collected from five late Pliocene, two early Pleistocene, five middle Pleistocene, and 52 late Pleistocene sites in 18 counties in Florida, one county in Georgia, three in South Carolina, and one in Mississippi. Occurrences of fossil Gopherus polyphemus in Lowndes County, Mississippi, and Charleston, Colleton, and Horry counties, South Caroli...
The formation of the Mekong-Salween Divide and climatic oscillations in Pleistocene were the main drivers for the contemporary diversity and genetic structure of plants in the Himalaya-Hengduan Mountains (HHM). To identify the relative roles of the two historical events in shaping population history of plants in HHM, we investigated the phylogeographic pattern of Oxyria sinensis, a perennial pl...
The Late Pleistocene global extinction of many terrestrial mammal species has been a subject of intensive scientific study for over a century, yet the relative contributions of environmental changes and the global expansion of humans remain unresolved. A defining component of these extinctions is a bias toward large species, with the majority of small-mammal taxa apparently surviving into the p...
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: New perspectives on middle Pleistocene change in the large mammal faunas of a b s t r a c t a r t i c l e i n f o The middle...
Throughout the last ∼ 900 kyr, the Late Pleistocene, Earth has experienced periods of cold glacial climate, punctuated by seven abrupt transitions to warm interglacials, the so-called terminations. Although most of glacial ice is located in the Northern Hemisphere (NH), the Southern Hemisphere (SH) seems to play a crucial role in deglaciation. Variation in the seasonal distribution of solar ins...
Cougars (Puma concolor) are one of only two large cats in North America to have survived the Late Pleistocene extinction (LPE), yet the specific key(s) to their relative success remains unknown. Here, we compare the dental microwear textures of Pleistocene cougars with sympatric felids from the La Brea Tar Pits in southern California that went extinct at the LPE (Panthera atrox and Smilodon fat...
The Sima del Elefante site, located in the Sierra de Atapuerca (Burgos, Spain), is an important Pleistocene archaeopalaeontological locality that has been excavated every year since 1996. At least two main infill phases have been identified: a first (TELRU) early Pleistocene phase that has provided a rich faunal assemblage, various stone tools and the earliest human remains from western Europe;...
The premise that Pleistocene ice ages played an important role in generating present-day species diversity has been challenged by genetic data indicating that most of the youngest terrestrial species on Earth coalesced long before major glacial advances. However, study has been biased towards faunas distributed at low latitudes that were not directly fragmented by advancing ice sheets. Using mi...
Comparative osteomorphology and sta ti st ical analysis cf postcranial limb bone measurements cf modern African wildebeest (Collnochaetes), eland (Taura/ragus) and African buffala (Sy" cer"s) have heen applied to reassess the systematic affiliations between these bovids and related extinct Pleistocene forms. The fossil sam pies come from the sites of Elandsfontein (Cape Province) .nd Flarisb.d ...
The fossil record of Red Sea fringing reefs provides an opportunity to study the history of coral-reef survival and recovery in the context of extreme environmental change. The Middle Pleistocene, the Late Pleistocene, and modern reefs represent three periods of reef growth separated by glacial low stands during which conditions became difficult for symbiotic reef fauna. Coral diversity and pal...
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