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词汇 Devonian
释义
Devonian
adjective geology specialized uk/dɪˈvəʊ.ni.ən/ us/dɪˈvoʊ.ni.ən/
(TIME)
泥盆纪(或系)的
from or referring to the period of time between about 420 and 360 million years ago, in which many plants, including the first trees, appeared on land
He is the survey's leading specialist in Devonian rocks.
The fossil is officially dated to 390 million to 408 million years ago, in the Devonian period.
    更多例句
  • In the meantime the Devonian temperature increased and desert areas expanded.
  • They were different from the slightly later Devonian tetrapods.
  • The climate in Devonian years was a far harsher one, he still thinks, than Inger envisions.
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