| 21. | Western Vermont mainly from the older Pre-Cambrian and Cambrian material.
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| 22. | Western Vermont mainly from the older Pre-Cambrian and Cambrian material.
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| 23. | Echinoderms first appeared in the fossil record in the Cambrian.
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| 24. | The Cambrian trilobite " Eccaparadoxides oelandicus " is named after �land
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| 25. | It contains rocks deposited before the Cambrian Period 540 million years ago.
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| 26. | The company name was changed to Cambrian Broadcasting by 1965.
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| 27. | The eyes of immature holochroal Cambrian trilobites were basically miniature schizochroal eyes.
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| 28. | The Cambrian Railways became part of the Great Western Railway.
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| 29. | This system had protected the Cambrian Railways for many years.
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| 30. | This site has recently been renamed Barry Main Dep�t by Cambrian Transport.
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