microfossil assemblages微体古生物组合
microfossil assemblage微体生物群
microfossil faunas微体化石群
microfossil flora微植物化石群;微体植物化石群
planktonic microfossil微型浮游生物化石
microfossil picture微体古生物照片
calcareous microfossil钙质微体化石
microfossil ĥ微化石
microfossil algae微化石藻
N(名词) a fossil generally less than 0.5 millimetre in size, such as a protozoan, bacterium, or pollen grain 微体化石