干旱区生态环境知识资源中心(Arid): The Early to late Middle Miocene mammalian assemblages from the Cura-Mallin Formation, at Lonquimay, southern Central Andes, Chile (similar to 38 degrees S): Biogeographical and paleoenvironmental implications

Arid

DOI	10.1016/j.jsames.2019.102319
	The Early to late Middle Miocene mammalian assemblages from the Cura-Mallin Formation, at Lonquimay, southern Central Andes, Chile (similar to 38 degrees S): Biogeographical and paleoenvironmental implications
	Solorzano, Andres 1; Encinas, Alfonso 2; Bobe, Rene 3; Maximiliano, Reyes 2; Carrasco, Gabriel 4
通讯作者	Solorzano, Andres
来源期刊	JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
ISSN	0895-9811
EISSN	1873-0647
出版年	2019
卷号	96
英文摘要	The Cura-Mallin Formation consists of a series of upper Oligocene to Upper Miocene volcanic and sedimentary rocks deposited in continental settings that crop out in the Andean Cordillera in Chile and Argentina between similar to 37 degrees and 39 degrees S. Since the 1990s few fossil mammals have been recovered from this unit in the surroundings of Lonquimay, south-central Chile (38.5 degrees S), and all of them were assigned to the Early Miocene. After a reassessment of the taxonomic affinities of the fauna so far recovered from the Cura-Mallfn Formation in the Lonquimay area, and based on the radioisotopic ages of the fossil-bearing localities, here we recognized two chronological distinctive mammalian assemblages: one of Early Miocene age (probably Colhuehuapian-Santacrucian SALMA), which includes Nesodon imbricatus and Parastrapotherium sp.; and a second one of late Middle Miocene age (12.8-11.6 Ma; Serravallian; Mayoan SALMA), which includes glyptodonts (Glyptodontidae indeterminate), armadillos (Eutatini indeterminate), macraucheniids (Theosodon sp.), a new interatheriid species (Protypotherium concepcionensis sp. nov.), and a likely platyrrhine monkey. Therefore, in contrast with previous interpretations, the fauna from Lonquimay is not uniquely restricted to the Early Miocene. The fossil mammals and plants recognized from the area indicate the persistence of mostly temperate and forested habitats with permanent bodies of water during the Early to latest Middle Miocene. This suggests that this part of the Andean Cordillera (38 degrees-39 degrees S) did not reach enough paleoaltitudes ( > 1000 m) to cause an important orographic rain shadow effect in the foreland basins at least after the late Middle Miocene (c. 12 Ma). However, the role of Neogene South Hemisphere climatic changes in triggering, or reinforcing, the foreland desertification along the south-central Andes is an additional factor that cannot be discarded.
英文关键词	Cura-Mallin Formation Miocene Fossils mammals Rain-shadow effect Protypotherium concepcionensis
类型	Article
语种	英语
国家	Chile ; England
收录类别	SCI-E
WOS记录号	WOS:000506715400003
WOS关键词	SANTA-CRUZ FORMATION ; CERRO BANDERA FORMATION ; PATAGONIAN ANDES ; MESOTHERIIDAE MAMMALIA ; TINGUIRIRICA FAUNA ; TECTONIC EVOLUTION ; NEOGENE GROWTH ; FOSSIL ; NOTOUNGULATA ; BASIN
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
EI主题词	2019-12-01
来源机构	University of Oxford
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311370
作者单位	1.Univ Concepcion, Fac Ciencias Quim, Programa Doctorado Ciencias Geol, Victor Lamas 1290, Concepcion, Chile; 2.Univ Concepcion, Fac Ciencias Quim, Dept Ciencias Tierra, Victor Lamas 1290, Concepcion, Chile; 3.Univ Oxford, Sch Anthropol, Oxford, England; 4.Serv Cient Educ & Turismo Cient Chile, Pedro Leon Ugalde 254, San Bernardo, Chile
推荐引用方式 GB/T 7714	Solorzano, Andres,Encinas, Alfonso,Bobe, Rene,et al. The Early to late Middle Miocene mammalian assemblages from the Cura-Mallin Formation, at Lonquimay, southern Central Andes, Chile (similar to 38 degrees S): Biogeographical and paleoenvironmental implications[J]. University of Oxford,2019,96.
APA	Solorzano, Andres,Encinas, Alfonso,Bobe, Rene,Maximiliano, Reyes,&Carrasco, Gabriel.(2019).The Early to late Middle Miocene mammalian assemblages from the Cura-Mallin Formation, at Lonquimay, southern Central Andes, Chile (similar to 38 degrees S): Biogeographical and paleoenvironmental implications.JOURNAL OF SOUTH AMERICAN EARTH SCIENCES,96.
MLA	Solorzano, Andres,et al."The Early to late Middle Miocene mammalian assemblages from the Cura-Mallin Formation, at Lonquimay, southern Central Andes, Chile (similar to 38 degrees S): Biogeographical and paleoenvironmental implications".JOURNAL OF SOUTH AMERICAN EARTH SCIENCES 96(2019).