气候变化领域集成服务门户(CCPortal): High plant diversity in Eocene South America: Evidence from Patagonia

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DOI	10.1126/science.1080475
	High plant diversity in Eocene South America: Evidence from Patagonia
	Wilf P.; Cúneo N.R.; Johnson K.R.; Hicks J.F.; Wing S.L.; Obradovich J.D.
发表日期	2003
ISSN	0036-8075
起始页码	122
结束页码	125
卷号	300 期号:5616
英文摘要	Tropical South America has the highest plant diversity of any region today, but this richness is usually characterized as a geologically recent development (Neogene or Pleistocene). From caldera-lake beds exposed at Laguna del Hunco in Patagonia, Argentina, paleolatitude ∼47°S, we report 102 leaf species. Radioisotopic and paleomagnetic analyses indicate that the flora was deposited 52 million years ago, the time of the early Eocene climatic optimum, when tropical plant taxa and warm, equable climates reached middle latitudes of both hemispheres. Adjusted for sample size, observed richness exceeds that of any other Eocene leaf flora, supporting an ancient history of high plant diversity in warm areas of South America.
英文关键词	Geology; Lakes; Radioisotopes; Latitudes; Plants (botany); biodiversity; Eocene; paleobotany; paleoclimate; paleolatitude; species richness; analytic method; Argentina; article; eocene; history; nonhuman; paleoclimate; plant; priority journal; South America; species diversity; Argentina; Climate; Ecology; Ecosystem; Fossils; Geologic Sediments; North America; Plant Leaves; Plants; Rain; South America; Temperature; Tropical Climate; Argentina; Laguna
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246030
作者单位	Department of Geosciences, Pennsylvania State University, University Park, PA 16802, United States; Museum of Paleontology, University of Michigan, Ann Arbor, MI 48109, United States; Department of Environmental Science, University of Pennsylvania, Philadelphia, PA 19104, United States; Museo Paleontologico Egidio Feruglio, Trelew, Chubut 9100, Argentina; Department of Earth Sciences, Denver Museum of Nature and Science, Denver, CO 80205, United States; Department of Paleobiology, Smithsonian Institution, Washington, DC 20560, United States; U.S. Geological Survey, Lakewood, CO 80225, United States
推荐引用方式 GB/T 7714	Wilf P.,Cúneo N.R.,Johnson K.R.,et al. High plant diversity in Eocene South America: Evidence from Patagonia[J],2003,300(5616).
APA	Wilf P.,Cúneo N.R.,Johnson K.R.,Hicks J.F.,Wing S.L.,&Obradovich J.D..(2003).High plant diversity in Eocene South America: Evidence from Patagonia.Science,300(5616).
MLA	Wilf P.,et al."High plant diversity in Eocene South America: Evidence from Patagonia".Science 300.5616(2003).