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Upper Ordovician Rocks in the Vicinity of Maysville, Kentucky: A Field Teaching Laboratory for Historical Geology Students
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| 其它 | INTRODUCTION, GEOLOGIC SETTING AND STRATIGRAPHY The Ordovician rocks in and around Maysville, Kentucky are part of the classic Cincinnati region Upper Ordovician (Cincinnatian Series) stratigraphic section. These rocks are known world-wide for their abundant, diverse, and well preserved Upper Ordovician fossils. During Late Ordovician time (Cincinnatian Epoch – from about 450 to 440 million years ago), the region surrounding Cincinnati, Ohio (northern Kentucky, southwestern Ohio, and |
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(2025-6-4)