ANTH-UA 2 Study Guide - Lithostratigraphy, Bog Body, Biostratigraphy
21 Oct 2014
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Document Summary
Few organisms are fossilized, and even fewer are discovered. Most fossils are bones that have been turned to stone when their minerals were replaced by those in groundwater. Trace fossils--such as foot prints or body impressions--also occur. Occasionally organic remains are preserved, such as insects in amber, frozen mammoths, and bog bodies. The study of what happens to an organism from its death to discovery. Understanding these changes is critical to cosidering what is likely to be preserved and how those remains reflect the past communities in which they lived. Divides earth"s history into nested categories of time: eons, eras, periods, epochs. Boundaries are placed where large shifts are seen in the geological column. Primate evolution occurs in the cenozoic era (past 65 million years) We live in the holocene epoch of the quaternary period of the cenozoic era of the. Uses the principles of stratigraphy to estimate age relative to something else.
