(Table 2, 3) Measurement of Cycladophora davisiana davisiana segments from OD...
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Segment 1 = cephalis, Segment 2 = thorax, Segment 3 = 1 st abdominal, Segment 4 = 2nd abdominal. 105-646B-1-5,69-99 0.06 Ma, 23 % C. d. davisiana, stage 4.09....
第一体段为头壳(cephalis),第二体段为胸节(thorax),第三体段为第一腹节,第四体段为第二腹节。标本编号105-646B-1-5、69-99,年代为0.06百万年(Ma),C. d. davisiana占比23%,对应阶段4.09……



