江西志留纪山口中华盔甲鱼的再描述
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盖志琨, 山显任, 孙智新, 赵文金, 潘照晖, 朱敏
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A redescription of the Silurian Sinogaleaspis shankouensis (Galeaspida, stem-Gnathostomata) from Jiangxi, China
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GAI Zhi-Kun, SHAN Xian-Ren, SUN Zhi-Xin, ZHAO Wen-Jin, PAN Zhao-Hui, ZHU Min
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Table 1 Measurements of Sinogaleaspis shankouensis (mm)
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Items | Holotype | | IVPP V 25135 | GMC V 1751 | | .1 | .2 | .3 | .4 | .5 | .6 | .7 | .8 | .9 | .10 | Maximum length of the head-shield | 17.1 | | 16.9 | 15.9 | 17.2 | 17.3 | 18.4 | 17.4 | - | - | 17.9 | 15.5 | Maximum width of the head-shield | - | | 20.4 | 20.8 | 20.6 | 19.3 | 17.8 | 20.3 | - | 20.6 | 19.7 | 17.2 | Length of the head-shield in midline | 11.5 | | 9.6 | 10.6 | 12.7 | 10.8 | - | 10.8 | - | 10.7 | 10.6 | 9.7 | Diameter of the orbital opening | 2.1 | | 2.1 | 1.9 | 2.0 | 1.8 | 2.0 | 1.6 | 2.1 | 2.2 | 1.9 | 1.5 | Distance between the orbital openings | 4.0 | | 4.3 | 4.3 | 4.6 | - | 4.6 | 4.5 | 4.0 | 4.4 | 4.5 | 3.7 | Long axis of the median dorsal opening | 4.2 | | 3.8 | 4.0 | 3.8 | - | 4.0 | 3.7 | 4.0 | 4.3 | 3.8 | - | Short axis of the median dorsal opening | 0.6 | | 0.7 | 0.9 | 0.9 | - | 1.0 | 1.1 | 1.2 | 1.1 | 1.1 | - | Length of the pre-pineal region in midline | 6.2 | | 5.4 | 5.7 | 6.6 | - | 6.7 | 5.8 | 6.4 | 5.4 | 5.6 | - | Length of the post-pineal region in midline | 5.3 | | 4.2 | 4.9 | 6.1 | - | - | 5.0 | - | 5.3 | 5.0 | - |
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