Similar words: devonian, ordovician period, nonperiodic, retention period, incubation period, gestation period, iberian peninsula, limitation period. Meaning: n. from 405 million to 345 million years ago; dominance of fishes and appearance of amphibians and ammonites.
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1. The Devonian Period or its system of deposits.
2. During the Devonian period, insects began to exploit terrestrial environments. Flight, the exoskeleton, and metamorphosis are probably keys to insect success.
3. During Devonian Period, the old sea basin of Qinling range was a continental sea, which was situated between Northern China and Yangtz old land.
4. The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.
5. Near the end of the Devonian period, 370m years ago, many species of fish and 70% of marine invertebrates perished. The reason is unclear.
6. During the Devonian period, northward of Longmen Mountain structural belt is located in northwest border of Up Yangtzee Ancient Land.
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7. On that scale the Hangenberg event, an extinction 359 million years ago at the end of the Devonian period, was considered a minor blip. Not any more.
8. The metallogenic ages are the lower and upper Proterozoic Subera, late and earlier Palaeozoic Era, Mesozoic Era, with Devonian Period as an important metallogenic era.
9. The 'layer-reef' in South China is similar to the 'low reef' of Devonian period in Canada and the 'mound reef' is similar to the 'high reef' of Devonian period in Canada and Devonian reefs in Germany.
10. Based on sequence stratigraphy work for the outcrops in Tarim Basin, The author sets up the Sealevel changes curve of sinian period to Devonian period.
11. This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province.
12. Plants of Gymnosperm had been through a long historical evolution on earth, fossil records of which originated from the late Devonian period.
13. The radiolaria fossils and submarine basalts which are first discovered afford us new material to discuss about the stratigraphical time and tectonic background of this area in Devonian period.
More similar words: devonian, ordovician period, nonperiodic, retention period, incubation period, gestation period, iberian peninsula, limitation period, collection period, devon, reconstruction period, devonshire, carboniferous period, arabian peninsula, scandinavian peninsula, period, periods, periodic, pay period, aperiodic, offer period, base period, busy period, periodical, time period, boom period, safe period, next period, photoperiod, final period.