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Upper Carboniferous |
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Upper Carboniferous [′əp·ər ‚kär·bə′nif·ə·rəs] (geology) The European epoch of geologic time equivalent to the Pennsylvanian of North America. 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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| The earliest known records of amphibians, the first land vertebrates, date to 360 million years ago, but it is not until the Upper Carboniferous, 50 million years later, that the fossil record becomes plentiful. |
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