ANTHROP 2FF3 Chapter Notes -Relative Dating, Dentition, Cenozoic

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Fossils and their place in time and nature (ch. 7) Organisms chemically changed into minerals (fe and silica) Organics have been replaced (i. e. became inorganic) through ground water. Microfossils: corals and marine creatures/shells, ancient tool makers noticed these indentations, date back to 500-345 mya (well before dinosaurs) Pale anthropology: study of extinct humans and their ancestors. Taphonmy: the laws of burial (study of what happens to decaying organisms) Requires an anoxic (no o2) environment where decomposition is limited. Organisms must be buried quick- so that there is no exposure to microorganisms. Primarily found in sedimentary rock- esp. those deposited in oceans. But also found in ancient cave sites (e. g. south africa) There is always some sort of bias . Representation bias: not all kinds of animals will be represented everywhere. Fossil record only provides a snapshot of life in the past. Fossil findings must be pieced together to create a story (i. e. things are interpreted)

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