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1. Near the end of Devonian times, thirty percent of all animal life vanished.

2. In the Upper Devonian, club mosses and horsetails grew to great heights.

3. In the meantime the Devonian temperature increased and desert areas expanded.

4. Complexities within the Devonian have similarly been ignored for lack of evidence.

5. Gold - bearing beds belong to the Devonian System.

6. The Devonian Period or its system of deposits.

7. The stratigraphy is shown as volcanic formations of Devonian and volcanic-sedimentary formations of Lower Carboniferous.

8. Devonian and Carboniferous Systems are target horizons and Guwanliang-Tongtianping-Huanggeda fault is the target structure for further Au exploration in the district.

9. Renewed work on the first known Devonian tetrapod, Ichthyostega, is showing that it, too, diverged from the norm— contrary to earlier preconceptions .

9. Sentencedict.com is a online sentence dictionary, on which you can find excellent sentences for a large number of words.

10. During the Devonian period, insects began to exploit terrestrial environments. Flight, the exoskeleton, and metamorphosis are probably keys to insect success.

11. The Bafangshan polymetallic deposit occurs in Middle Devonian Fengtai apart pull basin.

12. The Late Paleozoic volcanic rocks (from Early Devonian to Early Permian) were widely distributed in the south margin of the Altai Mountains.

13. The Haikou Formation of Middle Devonian in Luquan contains coal bearing sediments (predominantly clastic rocks)which are of littoral origin and yield abundant fishes, fossil plants and pelecypods.

14. The Group of Devonian project has Obtained radiolaria from 20 horizons of Volcaniclastic rocks in the Junggar Basin, Xinjiang.

15. Blooming of Bacteria and Algae: Possible Killer of Devonian Frasnian - Famennian Mass Extinction?

16. During Devonian Period, the old sea basin of Qinling range was a continental sea, which was situated between Northern China and Yangtz old land.

17. The Silurian and Devonian regional palaeogeography is controlled by the irregular orogenic process of the Northen Qilian from the Caledonian to Early Hercynian.

18. Cambro-Ordovician accumulation may well have been substantially greater, with corresponding erosion in mid-Ordovician or Devonian times.

19. These ferns began to slowly change shape and structure during the Devonian, and some became tall and tree-like.

20. 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.

21. With meso-high porosity and permeability, the Donghe sandstone member of Upper Devonian Donghetang Formation is the most important pay bed.

22. Huachanggou gold deposit locates in Guozhen Formation of Sanhekou Group of Devonian Mianxian - Lueyang suture zone.

23. Representative elements of order Albaillellaria firstly appear in Silurian, which prosperous in Late Devonian, and extinction in end-Permian, is the characteristic group of Late Paleozoic Radiolaria.

24. 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.

25. Sq 1 , Sq 4, Sq 10 are three favorableexploratory sequence of the Silurian and Devonian in Tarim basin.

26. The third period of the Paleozoic era, the Silurian follows the Ordovician period and precedes the Devonian.

27. The slope mudflow around the seat of Ningshaan County on a slope of Middle Devonian strata.

28. Volcanic eruptive activities occurred from Cambrian to Permian , most intensely in Devonian and Carboniferous.

29. Thus, this area shOuld belong to North China Region(otprovince )of the Old World Realm in respoct to reginalism of brachiopod zoogeography during lateEaly Devonian time.

30. There are relatively more tetrahedrite group minerals in gold deposits occurring in the interstratified fractured belt of Middle Devonian carbonate rock series in western Shimian of Sichuan Province.