干旱区生态环境知识资源中心(Arid): Reconstruction of the Early Miocene Critical Zone at Loperot, Southwestern Turkana, Kenya

Arid

DOI	10.3389/fevo.2019.00044
	Reconstruction of the Early Miocene Critical Zone at Loperot, Southwestern Turkana, Kenya
	Liutkus-Pierce, Cynthia M.1; Takashita-Bynum, Kevin K.2; Beane, Luke A.1; Edwards, Cole T.1; Burns, Oliver E.1; Mana, Sara 3; Hemming, Sidney 4; Grossman, Aryeh 5; Wright, James D.6; Kirera, Francis M.7
通讯作者	Liutkus-Pierce, Cynthia M.
来源期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
出版年	2019
卷号	7
英文摘要	The Hominoidea (apes and, eventually, humans) and Cercopithecoidea (Old World monkeys) diverged from a common ancestor during the late Oligocene (similar to 25 Ma) in East Africa. Subsequently, both catarrhine groups diversified in the early Miocene (similar to 23-16 Ma), making this time period an extremely important one for understanding our (deep) ancestral roots and the link between our hominoid ancestors and the environment. A remote region of west Turkana known as Loperot provides an exciting opportunity to study early Miocene primate paleoecology and has the potential to reveal the phylogenetic relationship between cercopithecoid monkeys and stem hominoids. The site of LpM4 is particularly fossiliferous and has produced a diverse fauna that includes several catarrhine fossils that await description. Radioisotopic dating indicates that the Loperot fauna are older than similar to 17 Ma (early Miocene). Using geochemical data from paleosols and stable isotope values from rhizolith calcite, coupled with detailed sedimentology and stratigraphy, we reconstruct the early Miocene Critical Zone of Loperot to reveal a large perennial river system fed by ephemeral streams that created localized riparian forest microhabitats within a larger open ecosystem under semi-arid climate conditions, making Loperot's environmental reconstruction unlike many other early Miocene catarrhine-bearing localities. The perennial river system supported corridors of C-3 forests; however, because these forests were restricted, they could not support a high diversity of forest indicator taxa. This is the most comprehensive analysis of the environmental conditions at Loperot to date, and provides new empirical evidence to suggest that African climate varied significantly by region and that arid habitats certainly existed during the early Miocene.
英文关键词	Miocene Loperot Kenya Critical Zone cattarhine paleosol
类型	Article
语种	英语
国家	USA
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000467399400001
WOS关键词	NORTHERN KENYA ; DEPOSITIONAL-ENVIRONMENTS ; ISOTOPIC EVIDENCE ; MIDDLE MIOCENE ; LAKE VICTORIA ; PALEOSOLS ; BASIN ; PLANTS ; PALEOENVIRONMENTS ; GEOCHRONOLOGY
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215755
作者单位	1.Appalachian State Univ, Dept Geol & Environm Sci, Boone, NC 28608 USA; 2.Murray State Univ, Watershed Inst, Murray, KY 42071 USA; 3.Salem State Univ, Dept Geol Sci, Salem, MA USA; 4.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA; 5.Midwestern Univ, Dept Anat, Glendale, AZ USA; 6.Rutgers State Univ, Dept Earth & Planetary Sci, New Brunswick, NJ USA; 7.Mercer Univ, Sch Med, Macon, GA 31207 USA
推荐引用方式 GB/T 7714	Liutkus-Pierce, Cynthia M.,Takashita-Bynum, Kevin K.,Beane, Luke A.,et al. Reconstruction of the Early Miocene Critical Zone at Loperot, Southwestern Turkana, Kenya[J],2019,7.
APA	Liutkus-Pierce, Cynthia M..,Takashita-Bynum, Kevin K..,Beane, Luke A..,Edwards, Cole T..,Burns, Oliver E..,...&Kirera, Francis M..(2019).Reconstruction of the Early Miocene Critical Zone at Loperot, Southwestern Turkana, Kenya.FRONTIERS IN ECOLOGY AND EVOLUTION,7.
MLA	Liutkus-Pierce, Cynthia M.,et al."Reconstruction of the Early Miocene Critical Zone at Loperot, Southwestern Turkana, Kenya".FRONTIERS IN ECOLOGY AND EVOLUTION 7(2019).