(Table 8) Nannoplankton occurrences in DSDP Hole 90-592

Sediment depth is given in mbsf. Species abundance: A = abundant (>50 specimens), C = common (25-49 specimens), and R = rare (<25 specimens) - = absent, obtained by scanning an area measuring approximately 45 mm**2.

沉积物深度以米海底以下（meters below sea floor, mbsf）为单位。物种丰度分级标准为：A代表丰富（标本量＞50件），C代表常见（25~49件标本），R代表稀有（标本量＜25件），"-"代表无该物种，所有数据均通过扫描约45 mm²的区域获取。