biostrome

n. [地]生物层

词形变化

biostromes 复数 biostromes

释义与例句

n.
  1. 1.

    A horizontally bedded stratum of fossilized remains of sedentary organisms

    地质

词源

bio- (“life”) + Latin stroma (“coverlet”), from Ancient Greek στρῶμα (strôma, “bed, mattress”).

来源：wiktionary