Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/02724634.2012.710282 |
PINNIPED TURNOVER IN THE SOUTH PACIFIC OCEAN: NEW EVIDENCE FROM THE PLIO-PLEISTOCENE OF THE ATACAMA DESERT, CHILE | |
Valenzuela-Toro, Ana M.1; Gutstein, Carolina S.1,2; Varas-Malca, Rafael M.3; Suarez, Mario E.4; Pyenson, Nicholas D.2,5 | |
通讯作者 | Valenzuela-Toro, Ana M. |
来源期刊 | JOURNAL OF VERTEBRATE PALEONTOLOGY
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ISSN | 0272-4634 |
EISSN | 1937-2809 |
出版年 | 2013 |
卷号 | 33期号:1页码:216-223 |
英文摘要 | Modern pinnipeds distributed along the coasts of continental South America consist almost entirely of otariids (sea lions and fur seals). In contrast, phocids (true seals) are present only on the southernmost extreme of Chile. This recent biogeographic pattern is consistent with the zooarchaeological record (similar to 8-2 ka), but it is incompatible with the pinniped fossil record during the Neogene. From the middle Miocene to the Pliocene, true seals exclusively dominated pinniped assemblages, and they were only replaced by the fur seals and sea lions sometime after the early Pliocene. Here, we describe pinniped material collected from two new localities in the Atacama Desert, northern Chile, that clarifies this marine mammal faunal turnover. Specifically, these finds provide records of the first occurrence of Otariidae (late Pleistocene) and the last occurrence of Phocidae (early Pliocene) in Chile, which in turn constrain the timing of this turnover to between the early Pliocene and late Pleistocene. The stratigraphic context of these findings provides new insights into hypotheses that explain this faunal turnover in South America, and we briefly discuss them in the context of turnover events involving other marine vertebrates throughout the Southern Hemisphere. |
类型 | Article |
语种 | 英语 |
国家 | Chile ; USA ; Peru |
收录类别 | SCI-E |
WOS记录号 | WOS:000313497100017 |
WOS关键词 | NORTH-CENTRAL CHILE ; CARNIVORA OTARIIDAE ; MIOCENE ; SEALS ; COASTAL ; DEFINITION ; PHYLOGENY ; TAXONOMY ; DEPOSITS ; RECORD |
WOS类目 | Paleontology |
WOS研究方向 | Paleontology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/178747 |
作者单位 | 1.Univ Chile, Fac Ciencias, Lab Ecofisiol, Santiago, Chile; 2.Smithsonian Inst, Natl Museum Nat Hist, Dept Paleobiol, Washington, DC 20013 USA; 3.Museo Hist Nat UNMSM, Dept Paleontol Vertebrados, Lima 14, Peru; 4.Museo Paleontol Caldera, Caldera, Region De Ataca, Chile; 5.Burke Museum Nat Hist & Culture, Dept Palaeontol, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Valenzuela-Toro, Ana M.,Gutstein, Carolina S.,Varas-Malca, Rafael M.,et al. PINNIPED TURNOVER IN THE SOUTH PACIFIC OCEAN: NEW EVIDENCE FROM THE PLIO-PLEISTOCENE OF THE ATACAMA DESERT, CHILE[J],2013,33(1):216-223. |
APA | Valenzuela-Toro, Ana M.,Gutstein, Carolina S.,Varas-Malca, Rafael M.,Suarez, Mario E.,&Pyenson, Nicholas D..(2013).PINNIPED TURNOVER IN THE SOUTH PACIFIC OCEAN: NEW EVIDENCE FROM THE PLIO-PLEISTOCENE OF THE ATACAMA DESERT, CHILE.JOURNAL OF VERTEBRATE PALEONTOLOGY,33(1),216-223. |
MLA | Valenzuela-Toro, Ana M.,et al."PINNIPED TURNOVER IN THE SOUTH PACIFIC OCEAN: NEW EVIDENCE FROM THE PLIO-PLEISTOCENE OF THE ATACAMA DESERT, CHILE".JOURNAL OF VERTEBRATE PALEONTOLOGY 33.1(2013):216-223. |
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