microfossil

In the summer of 2003 we began to zero in on one microfossil type whose complex morphological characteristics particularly intrigued us.

2003，我们开始瞄一种微化石，其复杂形态特徵特别引起我们兴趣。

No creditable macrofossil record of the Fagaceae exists in the Cretaceous deposits and all the Cretaceous microfossil reports remain equivocal and require further study.

白垩纪尚无壳斗科可靠大化石记录，微化石需要进一步研究才能确定亲缘关系以及古新世壳斗科已经分化出两个群。