江西志留纪山口中华盔甲鱼的再描述
盖志琨, 山显任, 孙智新, 赵文金, 潘照晖, 朱敏

A redescription of the Silurian Sinogaleaspis shankouensis (Galeaspida, stem-Gnathostomata) from Jiangxi, China
GAI Zhi-Kun, SHAN Xian-Ren, SUN Zhi-Xin, ZHAO Wen-Jin, PAN Zhao-Hui, ZHU Min
Table 1 Measurements of Sinogaleaspis shankouensis (mm)
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 -