首页> 外文期刊>Swiss journal of palaeontology >Tupaiine tree shrews (Scandentia, Mammalia) from the Yuanmou Lufengpithecus locality of Yunnan, China
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Tupaiine tree shrews (Scandentia, Mammalia) from the Yuanmou Lufengpithecus locality of Yunnan, China

机译:中国云南省元谋县陆风古猿所在地的土瓜树tree(Scandentia,哺乳动物)

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摘要

Tree shrew fossils are extremely rare. Here, we report two new tupaiine tree shrews, Prodendrogale engesseri sp. nov. and Tupaia storchi sp. nov., discovered from the late Miocene deposits of Yuanmou Lufengpithecus locality of Yunnan Province in China. P. engesseri is very close to the slightly younger species P. yunnanica Qiu (Vertebrata PalAsiatica, 24: 308-319, 1986) from the Lufeng Lufengpithecus locality of Yunnan Province. Relatively lower crowns and less trenchant tooth cusps of P. engesseri show that P. engesseri is more primitive than P. yunnanica. Tupaia storchi is a species larger than Palaeotupaia sivalicus Chopra and Vasishat, 1979, T. minor Gunther, 1876 and T. javanica Horsfield, 1822, but smaller than all the other extant species of Tupaia and T. miocenica Mein and Ginsburg, 1997. The mesiobuccal side of the lower molar of this species develops a very strong cingulid. It should be interpreted as a primitive condition. Discovery of diverse tree shrew fossils in Yunnan suggests that multiple evolutionary lineages of tree shrews must have coexisted in a very large area in East Asia.
机译:树sh化石极为罕见。在这里,我们报告了两个新的tupaiine树sh,Prodendrogale engesseri sp。十一月和Tupaia storchi sp。十一月,是从中国云南元谋县陆风古猿地区中新世晚期沉积中发现的。 P. engesseri与云南省陆丰市陆风古猿种群中稍年轻的云南云杉(Vertebrata PalAsiatica,24:308-319,1986)非常接近。 engesseri的较低的冠和较少的尖齿齿尖表明engesseri比yunnanica更原始。 Tupaia storchi是比1979年的Palaeotupaia sivalicus Chopra和Vasishat,1876年的T. minor Gunther和1822年的T. javanica Horsfield更大的物种,但比Tupaia和T. miocenica Mein和Ginsburg的所有其他现存物种都小,1997。该物种下臼齿的近颊侧发展出非常强的扣带。应该将其解释为原始条件。在云南发现的各种树sh化石表明,在东亚的一个很大区域中,树multiple的多个进化世系一定是共存的。

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