Early Devonian

• 早泥盆世

Early Devonian的用法和样例：

例句

1. From the Middle Silurian to the Early Devonian, no fossils were found in the EQM, which probably indicates that the EQM was a land and was connected with the North China Block.
   在中志留世至早泥盆世，东秦岭未发现古生物化石，很可能为陆地，并与华北陆块联为一体。