Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jseaes.2014.12.014 |
Age and stratigraphic context of Pliopithecus and associated fauna from Miocene sedimentary strata at Damiao, Inner Mongolia, China | |
Kaakinen, Anu1; Aziz, Hayfaa Abdul1,2; Passey, Benjamin H.3; Zhang, Zhaoqun4; Liu, Liping4; Salminen, Johanna1,5; Wang, Lihua4; Krijgsman, Wout2; Fortelius, Mikael1 | |
通讯作者 | Kaakinen, Anu |
来源期刊 | JOURNAL OF ASIAN EARTH SCIENCES
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ISSN | 1367-9120 |
EISSN | 1878-5786 |
出版年 | 2015 |
卷号 | 100页码:78-90 |
英文摘要 | Since the discovery of mammalian fossils in Central Inner Mongolia in the beginning of the 20th century, this area has produced a rich and diverse record of Miocene faunas. Nevertheless, the stratigraphy has remained poorly constrained owing to scattered faunal horizons and lack of continuous vertical exposures. Consequently, most age estimates of these Miocene sites are based on paleontological evidence alone, with very few sites having been dated independently. Our field investigations in Damiao, in Siziwang Qi, Inner Mongolia have yielded more than 30 new fossiliferous localities from three horizons, including a pliopithecid fauna. This study presents the litho-, bio- and magnetostratigraphy of the Damiao area and provides age estimates for the three fossil-bearing horizons. The sedimentary sequence is interpreted as the remains of a fluvial system comprising channels, subaerially exposed floodplains and floodbasin environments. The two local stratigraphic sections measured and sampled for paleomagnetic analysis coincide with species-rich vertebrate fossil localities. The paleomagnetic results and faunal evidence suggest a correlation of lowermost fossil horizon (DM16) producing relatively rich small mammal assemblage to the early Miocene chron C6Ar or C6An.1r, roughly in 20-21 Ma age range. The pliopithecid locality level (DM01) represents latest middle Miocene and has an age estimate of about 12.1 Ma while the youngest localities (DM02) with cervoids and abundant and diverse small mammal fauna represents the earliest late Miocene with an age estimate of about 11.6 Ma. Our magnetostratigraphic results confirm that the Damiao strata constitute one of the best sequences in Inner Mongolia with early, middle and late Miocene mammalian faunas in stratigraphic superposition. The results also provide constraints on the paleoenvironmental evolution and bioevents of the area. The occurrence of pliopithecid primates in the middle Miocene of Inner Mongolia suggests humid habitats and challenges the scenarios suggesting arid and highly seasonal conditions for Central Asia since Early Miocene. The presence of pliopithecids may also bear witness to locally humid environments and greater habitat heterogeneity than previously known in central Inner Mongolia. (C) 2015 Elsevier Ltd. All rights reserved. |
英文关键词 | Magnetostratigraphy Fossil mammals Pliopithecid primates Palaeoenvironment Neogene Nei Mongol |
类型 | Article |
语种 | 英语 |
国家 | Finland ; Netherlands ; USA ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000350524000005 |
WOS关键词 | MIDDLE MIOCENE ; BIGHORN BASIN ; ARCHITECTURE ; DEPOSITS ; BEARING ; SYSTEM ; USA |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/188417 |
作者单位 | 1.Univ Helsinki, Dept Geosci & Geog, FIN-00014 Helsinki, Finland; 2.Univ Utrecht, Paleomagnet Lab Ft Hoofddijk, NL-3584 CD Utrecht, Netherlands; 3.Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA; 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Paleontol & Human Origins, Beijing 100044, Peoples R China; 5.Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland |
推荐引用方式 GB/T 7714 | Kaakinen, Anu,Aziz, Hayfaa Abdul,Passey, Benjamin H.,et al. Age and stratigraphic context of Pliopithecus and associated fauna from Miocene sedimentary strata at Damiao, Inner Mongolia, China[J],2015,100:78-90. |
APA | Kaakinen, Anu.,Aziz, Hayfaa Abdul.,Passey, Benjamin H..,Zhang, Zhaoqun.,Liu, Liping.,...&Fortelius, Mikael.(2015).Age and stratigraphic context of Pliopithecus and associated fauna from Miocene sedimentary strata at Damiao, Inner Mongolia, China.JOURNAL OF ASIAN EARTH SCIENCES,100,78-90. |
MLA | Kaakinen, Anu,et al."Age and stratigraphic context of Pliopithecus and associated fauna from Miocene sedimentary strata at Damiao, Inner Mongolia, China".JOURNAL OF ASIAN EARTH SCIENCES 100(2015):78-90. |
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