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记述了准噶尔盆地北缘吃巴尔我义索索泉组的 Metexallerix junggarensis sp. nov。该种在形态上较兰州早中新世的M.gaolanshanensis原始,较蒙古早渐新世三达河组的Exallerix hsandagolensis进步。其亲缘关系与亚洲的短面猬类较近,而与北美的短面猬类较远。应用分支系统学的方法分析了短面猬亚科各属间及其相关类群的系统发育关系,结果表明,短面猬亚科为一个单系类群。依据新种的进化水平,索索泉组动物群的时代应晚于三达河动物群,而早于兰州动物群。
The Metexallerix junggarensis sp. From the Yisuo Suoquan Formation in the northern margin of the Junggar Basin is described. nov The species, M.gaolanshanensis, which is morphologically more pre-Miocene in Lanzhou, progressed than Exallerix hsandagolensis in the Early Oligocene Sandahe Formation in Mongolia. The kinship is closely related to the short-faced Hedgehog in Asia, but far away from the North American short-Hedgehog. The phylogenetic relationships among the genera and related taxa of subfamilies of Hylaria divaricata were analyzed using the method of branch phylogenetics. The results showed that the subfamilies of Hyriopsis crenatum were a monophyletic group. According to the evolutionary level of the new species, the age of the fauna of the Sosuoquan Formation should be later than that of the Sandahe fauna, but earlier than that of the Lanzhou fauna.