High-level systematics of placental mammals: Current status of the problem

Averianov A. O.; Lopatin A. V.

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High-level systematics of placental mammals: Current status of the problem

机译：胎盘哺乳动物的高级系统：问题的现状

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According to molecular data, the modern clades of placental mammals can be grouped into four supraordinal taxa (Xenarthra, Afrotheria, Euarchontoglires, and Laurasiatheria) whose phylogenetic interrelationships have been interpreted inconsistently. Among these taxa, the group Afrotheria has no morphological support. Within this group, there are orders that are clearly related to "condylarthrans" ("afroungulates") and to insectivores ("afrosoricids"). The radiation of placental mammals (the crown clade Placentalia) started before the K/T boundary on the northern continents. Laurasiatheria are likely to be the oldest clade of placentals: the diversification of Lipotyphla and Euungulata started similar to 80 Mya (Campanian) and similar to 70 Mya (Maastrichtian), respectively. It is shown that the fossil record is the only reliable method to test the phylogenetic hypotheses based on the material of the molecular and morphological studies of recent taxa.

机译：根据分子数据，现代的胎盘哺乳动物进化枝可分为四个上系分类群（Xenarthra，Afrotheria，Euarchontoglires和Laurasiatheria），它们在系统发育关系上的解释不一致。在这些分类中，非洲菊属没有任何形态学支持。在这一组中，存在明显与“ con突”（“假齿”）和食虫（“假孢子”）有关的订单。胎盘哺乳动物（冠状的Placentalia）的辐射开始于北部大陆的K / T边界之前。 Laurasiatheria可能是最古老的胎盘进化枝：Lipotyphla和Euungulata的多样化开始分别类似于80 Mya（Campanian）和70 Mya（Maastrichtian）。结果表明，根据近期分类群的分子学和形态学研究资料，化石记录是检验系统发育假说的唯一可靠方法。

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《Biology Bulletin》 |2014年第9期|801-816|共16页
作者
Averianov A. O.; Lopatin A. V.;
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Russian Acad Sci, Inst Zool, St Petersburg 199034, Russia|Russian Acad Sci, Borissiak Paleontol Inst, Moscow 117997, Russia;

St Petersburg State Univ, Geol Fac, St Petersburg 199034, Russia;

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正文语种 eng
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关键词
mammals; placentals; phylogeny; systematics;

机译：哺乳动物;胎盘;系统发育;系统学;

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High-level systematics of placental mammals: Current status of the problem

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