Fossils dating. Although the recognition of fossils goes germany dating sites free hundreds of years, the systematic cataloguing and assignment of relative ages to different organisms from the distant past — paleontology — only dates back to the earliest part of the 19th century.

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Determining the numerical age of rocks and fossils.

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The sediment of this area was laid down after ammonite A appeared million years ago, and before ammonite B became extinct million years ago.

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By understanding the dates of these rocks, scientists can deduce the age of the nearby fossils.







Keokuk Quartz Geodes.