干旱区生态环境知识资源中心(Arid): A new Miocene turtle from Colombia sheds light on the evolutionary history of the extant genus Mesoclemmys Gray, 1873

Arid

DOI	10.1080/02724634.2019.1716777
	A new Miocene turtle from Colombia sheds light on the evolutionary history of the extant genus Mesoclemmys Gray, 1873
	Cadena, Edwin-Alberto 1; Vanegas, Andres 2; Jaramillo, Carlos 3,4,5; Cottle, John M.6; Johnson, Thomas A.6
通讯作者	Cadena, Edwin-Alberto
来源期刊	JOURNAL OF VERTEBRATE PALEONTOLOGY
ISSN	0272-4634
EISSN	1937-2809
出版年	2019
卷号	39 期号:5
英文摘要	Mesoclemmys is the most diverse extant genus of South American pleurodires or side-necked turtles, with at least 10 species inhabiting fluvial to littoral environments. Despite this high extant diversity and extensive geographic distribution, the evolutionary history and fossil record of this genus are completely unknown. Here, we describe the first fossil record of this genus, which supports a previous molecular-based hypothesis that indicates a minimum split time of 13.5 Ma between this and other genera of South American chelids. Mesoclemmys vanegasorum, sp. nov., is represented by a nearly complete shell (carapace and plastron) and some postcranial bones found in the middle Miocene (13.6 +/- 0.2 Ma), La Victoria Formation, Tatacoa Desert, Colombia, increasing the turtle paleodiversity of La Venta Fauna. It differs from all extant species of Mesoclemmys by vertebral scute 1 reaching the sutural boundary between peripherals 1 and 2; shorter cervical and marginal scutes 1 to 3; pleurals 1 very advanced over the peripherals; pygal bone with a posteromedial shallow notch; vertebral 5 covering half of the pygal bone; small extragulars reaching only half of the epiplastra length; and a fine microvermiculation of the shell. Our phylogenetic results show a close relationship between M. vanegasorum, sp. nov., and the extant M. hogei. The overall morphology and size of Mesoclemmys genus have remained relatively constant for at least the last 13.6 million years. However, its geographic distribution has decreased drastically in northwestern South America, being restricted today to the lower region of the Magdalena River Basin.
类型	Article
语种	英语
国家	Colombia ; Panama ; France ; USA
收录类别	SCI-E
WOS记录号	WOS:000515493700001
WOS关键词	EASTERN CORDILLERA ; TESTUDINES ; PHYLOGENY ; CHELIDAE ; PLEURODIRA ; UPLIFT
WOS类目	Paleontology
WOS研究方向	Paleontology
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315106
作者单位	1.Univ Rosario, Fac Ciencias Nat & Matemat, Grp Invest Paleontol Neotrop Trad & Mol PaleoNeo, Bogota, Colombia; 2.Fdn Vigias Patrimonio Paleontol La Tatacoa, La Victoria, Huila, Colombia; 3.Smithsonian Trop Res Inst, Ctr Trop Paleoecol & Archeol, Panama City, Panama; 4.Univ Montpellier, Equipe Paleontol, Inst Sci Evolut Montpellier, Montpellier, France; 5.Univ Montpellier, Inst Sci Evolut Montpellier, Montpellier, France; 6.Univ Calif Santa Barbara, Dept Earth Sci, Santa Barbara, CA 93106 USA
推荐引用方式 GB/T 7714	Cadena, Edwin-Alberto,Vanegas, Andres,Jaramillo, Carlos,et al. A new Miocene turtle from Colombia sheds light on the evolutionary history of the extant genus Mesoclemmys Gray, 1873[J]. French National Research Institute for Sustainable Development,2019,39(5).
APA	Cadena, Edwin-Alberto,Vanegas, Andres,Jaramillo, Carlos,Cottle, John M.,&Johnson, Thomas A..(2019).A new Miocene turtle from Colombia sheds light on the evolutionary history of the extant genus Mesoclemmys Gray, 1873.JOURNAL OF VERTEBRATE PALEONTOLOGY,39(5).
MLA	Cadena, Edwin-Alberto,et al."A new Miocene turtle from Colombia sheds light on the evolutionary history of the extant genus Mesoclemmys Gray, 1873".JOURNAL OF VERTEBRATE PALEONTOLOGY 39.5(2019).