devonian extinction造句
例句與造句
- This time corresponds approximately to the Late Devonian extinction.
- This may have cooled the climate and led to a massive extinction event . see Late Devonian extinction.
- It has been suggested that global cooling caused or contributed to the Late Devonian extinctions, and possibly others.
- But this diversity ultimately suffered many casualties during the extinction event at the Frasnian Famennian boundary, the Late Devonian extinctions.
- All known forms of Frasnian tetrapods became extinct in the Late Devonian extinction, also known as the end-Frasnian extinction.
- It's difficult to find devonian extinction in a sentence. 用devonian extinction造句挺難的
- Land plants as well as freshwater species, such as our tetrapod ancestors, were relatively unaffected by the Late Devonian extinction event.
- The Devonian extinction crisis primarily affected the marine community, and selectively affected shallow warm-water organisms rather than cool-water organisms.
- The Exshaw strata were deposited in a marine setting during the Hangenberg event, an oceanic anoxic event associated with the Late Devonian extinction.
- The Late Devonian extinction crisis primarily affected the marine community, and selectively affected shallow warm-water organisms rather than cool-water organisms.
- The Late Devonian extinction severely affected marine life, killing off all placoderms, and all trilobites, save for a few species of the order Proetida.
- 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.
- 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.
- 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.
- 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.
- 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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