| 11. | He was the first to discover Precambrian fossils around the world.
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| 12. | Evidence suggests that arthropod-like organisms existed during the Precambrian.
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| 13. | The caldera itself is located on the Precambrian-Ordovician basement.
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| 14. | But their search forevidence of Precambrian ancestors had been frustrating.
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| 15. | Most of these Precambrian fossils are microscopic bacteria or microfossils.
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| 16. | There have been no discoveries of Precambrian rocks in Victoria.
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| 17. | These particular hills are fossil islands from the Precambrian period.
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| 18. | In the Precambrian, the supercontinent began to break apart.
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| 19. | Its Precambrian crystalline block was cratonised ca . 1550-1450 Ma.
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| 20. | Paleobotanical collections, particularly Precambrian material containing early life forms.
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