| 41. | He was chairman of the Cambrian Railways Company from 1900.
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| 42. | In the 1850s a schism developed among the membership of the Cambrians.
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| 43. | Both formations are supposed to cover the age range Neoproterozoic to Cambrian.
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| 44. | Donald Rocha represents District 9 which is the Cambrian Area.
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| 45. | On 20 November 1811 " Cambrian " arrived in Portsmouth.
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| 46. | Their father was a surveyor of Welsh or Cambrian ancestry.
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| 47. | The species lived at the end of the Lower Cambrian.
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| 48. | Its species lived during the Lower Cambrian ( Atdabanian ).
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| 49. | Sea levels around North America dropped at the end of the Cambrian.
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| 50. | The unit is of Cambrian age and rests unconformably on Precambrian rock.
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