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Cambrian |
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Cambrian of, denoting, or formed in the first 65 million years of the Palaeozoic era, during which marine invertebrates, esp trilobites, flourished Cambrian [′kam·brē·ən] (geology) The lowest geologic system that contains abundant fossils of animals, and the first (earliest) geologic period of the Paleozoic era from 570 to 500 million years ago. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| This suggests to Collins that Cambrian fauna had been evolutionarily stable for some time--which may imply that early evolution occurred either faster or even earlier than paleontologists commonly suppose. |
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