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首页> 外文期刊>Nature >Multituberculate and other mammal hair recovered from Palaeogene excreta
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Multituberculate and other mammal hair recovered from Palaeogene excreta

机译：从古生菌排泄物中回收的多管状和其他哺乳动物毛发

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Evidence of hair from several extinct mammals has been recovered from a rich accumulation of fossil excrement from the Late Palaeocene beds of Inner Mongolia, China. This highly unusual and previously undocumented depositional occurrence consists of hundreds of mammalian carnivore coprolites (fossil faeces) and a lesser number of probably raptorial bird regurgitalites (fossil pellets). The fossil hair occurs as impressions and natural casts in the extremely fine-grained, calcareous matrix that cements the skeletal remains within these faecal structures and preserves even the cuticular scale pattern on individual hair. Hair from at least four mammalian taxa, most notably the multituberculate Lambdopsalis bulla, has been identified. This record constitutes the first tangible evidence that, along with monotremes and therian mammals, multituberculates were hirsuite, and lends support for the presence of this mammalian feature in the most recent common ancestor of these three groups.
机译：几只绝种哺乳动物的毛发证据已经从中国内蒙古晚新世晚期河床的化石粪便堆积物中积累。这种极为不寻常且以前没有记录的沉积物包括数百种食肉动物共腐殖质（化石粪便）和数量较少的猛禽反刍动物（化石颗粒）。化石的头发以压痕和天然铸模的形式出现在极其细小的钙质基质中，这些基质使这些粪便结构中的骨骼残留物固着，甚至在每根头发上都保留了表皮鳞状图案。已经鉴定出至少四个哺乳动物类群的毛发，最显着的是多管小羊羔。该记录构成了第一个有形的证据，表明与单足类和兽类哺乳动物一起，多结节状是hirsuite，这为这三个群体的最新共同祖先中存在这种哺乳动物特征提供了支持。

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