globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2014.10.004
Scopus记录号: 2-s2.0-84908504604
论文题名:
Paleoclimatic and paleoenvironmental context of the Early Pleistocene hominins from Dmanisi (Georgia, Lesser Caucasus) inferred from the herpetofaunal assemblage
作者: Blain H.-A.; Agustí J.; Lordkipanidze D.; Rook L.; Delfino M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 105
起始页码: 136
结束页码: 150
语种: 英语
英文关键词: Dmanisi ; Early Homo ; Early Pleistocene ; Herpetofauna ; Paleoclimate ; Paleoenvironment
Scopus关键词: Dmanisi ; Early Homo ; Early pleistocene ; Herpetofauna ; Paleo-environment ; Paleoclimates ; amphibian ; artifact ; fossil record ; herpetofauna ; hominid ; Mediterranean environment ; paleoclimate ; paleoenvironment ; Paleolithic ; reconstruction ; reptile ; skeletal remains ; Georgia ; United States
英文摘要: Dmanisi is currently the oldest Early Palaeolithic site discovered out of Africa. It has produced over 40 hominin remains, including a set of very informative skulls, in direct association with faunal remains and numerous lithic artifacts. Given the relevance of this locality, every effort is being made to reconstruct the landscapes where these hominins once lived. Amphibian and reptile remains from Dmanisi are here described for the first time and used as paleoclimatic and paleoenvironmental proxies. They comprise at least six taxa: a green toad (. Bufo gr. Bufo viridis), the Greek tortoise (. Testudo graeca), a green lizard (. Lacerta gr. Lacerta viridis), a four-lined snake (. Elaphe gr. Elaphe quatuorlineata), an indeterminate colubrid and a water snake (. Natrix sp.). As these taxa are not extinct and their ecology can be directly studied, they can contribute to the reconstruction of the landscape and climate. The application of the Mutual Climatic Range method provides quantitative data indicating that during the hominin presence at Dmanisi climate was warm and dry, similar to the present-day Mediterranean climate. In comparison with today climate of Dmanisi, estimated mean annual temperature was 3.1°C higher, with a greater increase of temperature in summer (+7.1°C) than in winter (+4.7°C). The mean annual precipitation was slightly lower (-65mm) than the current level, with precipitation higher than current one during winter (+104mm) but strongly lower during the other seasons, suggesting a stronger contrast in the rainfall regime during the year. From a paleoenvironmental point of view, fossil amphibians and reptiles all suggest the predominance of arid environments, from steppe or semi-desert to open Mediterranean forest, with stony or rocky substrate and bushy areas. The presence of permanent aquatic environments is also documented. These results mainly agree with those for large mammals, small mammals and the archaeobotanical analysis that indicate an important water stress suggesting a period of increased aridity contemporaneous with human occupations of the site. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60122
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作者单位: IPHES (Institut Català de Paleoecologia Humana i Evolució Social), C/Marcel lí Domingo s/n (Edifici W3), Campus Sescelades, Tarragona, Spain; Area de Prehistoria, Universitat Rovira i Virgili (URV), Avinguda de Catalunya 35, Tarragona, Spain; Institut Català de Recerca i Estudi Avançat (ICREA), Barcelona, Spain; Georgian National Museum, 3, Rustaveli Avenue, Tbilisi, Georgia; Dipartimento di Scienze della Terra, Università di Firenze, via G. La Pira 4, Firenze, Italy; Dipartimento di Scienze della Terra, Università di Torino, via Valperga Caluso 35, Torino, Italy; Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici Z (ICTA-ICP), Carrer de les Columnes s/n Campus de la UAB s/n, Cerdanyola del Vallès, Barcelona, Spain

Recommended Citation:
Blain H.-A.,Agustí J.,Lordkipanidze D.,et al. Paleoclimatic and paleoenvironmental context of the Early Pleistocene hominins from Dmanisi (Georgia, Lesser Caucasus) inferred from the herpetofaunal assemblage[J]. Quaternary Science Reviews,2014-01-01,105
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