(Table 2) Neogene diatoms at DSDP Site 55-431

Sediment depth is given in mbsf. Abundance is recorded as follows: VR = very rare (less than 100 individuals on one slide, 18 x 18 mm). Preservation is recorded as follows: p = poor according to the degree of destruction of the diatom valves.

沉积物深度以mbsf（meters below sea floor，即海底以下米）为单位给出。丰度记录规则如下：VR表示极稀有（单张18×18mm载玻片上的个体数量少于100个）。保存状态记录规则如下：p代表保存较差，其判定依据为硅藻壳瓣的破损程度。