记泥河湾盆地晚上新世—早更新世䶄亚科(Arvicolinae)和鼢鼠亚科(Myospalacinae)五新种
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郑绍华, 张颖奇, 崔宁
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Five new species of Arvicolinae and Myospalacinae from the Late Pliocene-Early Pleistocene of Nihewan Basin
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ZHENG Shao-Hua, ZHANG Ying-Qi, CUI Ning
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Table 3 Proportions of 2- and 3-rooted M2 and M3 in four Mimomys species from China
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| Species | Locality | M2 (n|%) | | M3 (n|%) | | 3-rooted | 2-rooted | | 3-rooted | 2-rooted | | M. bilikeensis | Bilike | 15|100 | 0|0 | | 11|68.8 | 5|31.3 | | M. teilhardi | Gaotege | 64|100 | 0|0 | | 2|5.9 | 32|94.1 | | M. orientalis | Gaotege | 12|75 | 4|25 | | 1|14.3 | 6|85.7 | | Danangou | 16|61.5 | 10|38.5 | | 5|83.3 | 1|16.7 | | combined | 28|66.7 | 14|33.3 | | 6|46.2 | 7|53.9 | | M. nihewanensis sp. nov. | Laowogou etc | 75|96.2 | 3|3.9 | | 64|84.2 | 12|15.8 |
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