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devonian extinction造句

例句與造句

  1. This time corresponds approximately to the Late Devonian extinction.
  2. This may have cooled the climate and led to a massive extinction event . see Late Devonian extinction.
  3. It has been suggested that global cooling caused or contributed to the Late Devonian extinctions, and possibly others.
  4. But this diversity ultimately suffered many casualties during the extinction event at the Frasnian Famennian boundary, the Late Devonian extinctions.
  5. All known forms of Frasnian tetrapods became extinct in the Late Devonian extinction, also known as the end-Frasnian extinction.
  6. It's difficult to find devonian extinction in a sentence. 用devonian extinction造句挺難的
  7. Land plants as well as freshwater species, such as our tetrapod ancestors, were relatively unaffected by the Late Devonian extinction event.
  8. The Devonian extinction crisis primarily affected the marine community, and selectively affected shallow warm-water organisms rather than cool-water organisms.
  9. The Exshaw strata were deposited in a marine setting during the Hangenberg event, an oceanic anoxic event associated with the Late Devonian extinction.
  10. The Late Devonian extinction crisis primarily affected the marine community, and selectively affected shallow warm-water organisms rather than cool-water organisms.
  11. The Late Devonian extinction severely affected marine life, killing off all placoderms, and all trilobites, save for a few species of the order Proetida.
  12. Goniatites ( goniatitida ) survived the Late Devonian extinction to flourish during the Carboniferous and Permian only to become extinct at the end of the Permian some 139 million years later.
  13. However, a number of characteristic forms do not extend far into the Devonian and almost all the remainder were wiped out by a series of drastic Middle and Late Devonian extinctions.
  14. The Late Devonian extinction occurred at the beginning of the last phase of the Devonian period, the Famennian faunal stage, ( the Frasnian-Famennian boundary ), about Ma.
  15. The reasons for the Late Devonian extinctions are still unknown, and all explanations remain speculative . paleontologist Digby McLaren suggested in 1969 that the Devonian extinction events were caused by an asteroid impact.
  16. The reasons for the Late Devonian extinctions are still unknown, and all explanations remain speculative . paleontologist Digby McLaren suggested in 1969 that the Devonian extinction events were caused by an asteroid impact.
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