Equus qingyangensis in Jinyuan Cave and its palaeozoographic significance
Equus qingyangensis in Jinyuan Cave and its palaeozoographic significance
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金源洞青阳马及其古动物学意义
DOI：
10.1016/j.quaint.2020.10.076
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发表时间：
2020-11
影响因子：
2.2
通讯作者：
Changzhu Jin
中科院分区：
文献类型：
--
作者：
Boyang Sun;Wenhui Liu;Jinyuan Liu;Li Liu;Changzhu Jin
本文报道了在大连骆驼山金源洞发现的马属动物头骨化石。根据形态特征的复杂性，该标本被鉴定为青羊马（Equus qingyangensis），年龄为1.2 Ma。结合这一新发现，对已知的E. qingyangensis与欧亚大陆其它狭口马属的物种进行了比较。一个头骨先前报道为E。将泥河湾盆地出土的teilhardi化石订正为E.青阳草记录的E. qingyangensis的发现是巴家咀、泥河湾（s. s.），还有金源洞。根据古地磁资料、哺乳动物区系对比和重大环境事件，确定了巴家嘴和泥河湾的时代。s.）地点被认为是2.1-1.7 Ma，与欧洲晚Villafranchian动物群相对应。因此，根据记录，E. qingyangensis为2.1- 1.2Ma。随着气候的变化和白令海峡的暴露，E.中国青阳藻的发生是一个重大的生物事件。E. qingyangensis和另一个纤细种E. stenonis，出现并分散在整个欧亚大陆，在这一时期出现了类似犬科动物和大型鬣狗Pachycrocuta。考虑到马和犬科物种所扮演的角色，我们认为，这马-犬的发生代表了一系列重大的环境和生态变化中的重大生物事件。
The discovery of a fossil Equus skull in Jinyuan Cave, Luotuo Hill, Dalian, is reported herein. The specimen was identified as Equus qingyangensis, based on the complexity of morphological features, and is considered to be as young as 1.2 Ma. Combined with the new finding, the known specimens of E. qingyangensis were reviewed and compared with other stenonid horse species in Eurasia. A skull previously reported as E. teilhardi, unearthed in the Nihewan Basin, is revised as E. qingyangensis. The recorded locations of E. qingyangensis findings are Bajiazui, Nihewan (s. s.), and the Jinyuan Cave. According to paleomagnetic data, mammalian fauna correlations, and significant environmental events, the ages of the Bajiazui and Nihewan (s. s.) localities are considered to be 2.1–1.7 Ma and correspond with the late Villafranchian faunae in Europe. Thus, based on the records, the temporal range of E. qingyangensis is 2.1–1.2 Ma. With climate change and exposure of the Bering Strait, the occurrence of E. qingyangensis in China was a significant biotic event. E. qingyangensis and another gracile species, E. stenonis, appeared and dispersed throughout Eurasia, and wolf-like canids and the large hyenid Pachycrocuta emerged during this period. Considering the roles equid and canid species played, we propose that this Equus–Canis occurrence represented a substantial biotic event during a series of major environmental and ecological changes.
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DOI：
10.1007/978-90-481-9036-2_13
发表时间：
2010
期刊：
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影响因子：
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作者：
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DOI：
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影响因子：
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1993
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通讯作者：
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DOI：
10.1515/9780691185415
发表时间：
2018-08
期刊：
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影响因子：
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