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首页> 外文期刊>Acta Palaeontologica Polonica >A new omomyid primate from the earliest Eocene of southern England: First phase of microchoerine evolution
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A new omomyid primate from the earliest Eocene of southern England: First phase of microchoerine evolution

机译:来自英格兰南部最早的始新世的一种新的同生动物灵长类动物:微胆碱进化的第一阶段

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摘要

A second species of the microchoerine omomyid genus Melaneremia, M. schrevei sp. nov. is described. It has been collected from the upper shelly clay unit of the Woolwich Formation, earliest Ypresian, Eocene, of Croydon, Greater London, UK. Phylogenetic analysis shows M. schrevei to be the most primitive member of the main clade of the Microchoerinae and demonstrates the initial dental evolution that separated this European subfamily from other omomyids. Calibration of the Woolwich upper shelly clay unit to the later part of the Paleocene-Eocene Thermal Maximum shows that speciation leading to the Microchoerinae took place within 170 ky of the beginning of the Eocene. Tentative identification of M. schrevei in the Conglomérat de Meudon of the Paris Basin suggests close time correlation with the upper part of the Woolwich Formation.
机译:Microchoerine omomyid属Melaneremia,M。schrevei sp。的第二种。十一月描述。它是从英国大伦敦克罗伊登始新世的伊普尔人最早的伍尔维奇组的上部贝壳状粘土单元中收集的。系统发育分析表明,Schrevei菌是Microchoerinae主要进化枝中最原始的成员,并证明了该欧洲亚科与其他同卵亚种分离的最初牙齿进化。将Woolwich上部带壳粘土单元校准到古新世-始新世热最大值的后部,表明导致Microchoerinae的物种发生在始新世开始的170 ky内。初步确定巴黎盆地的Conglomératde Meudon的M. schrevei与Woolwich组的上部具有密切的时间相关性。

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