Few fossils were found previously in early Early Cambrian black shale , such as sponges.With the deepening of the research , many phyla have been discovered recently.

 
  • 早寒武世早期黑色页岩中以前只发现少量的海绵骨针,但随着研究的深入,各类动物化石被发现。
今日热词
目录 附录 查词历史