sanisera field school, session 9, 2010: taphonomy, by mike cursio
TRANSCRIPT
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Tales From The Crypt
Taphonomic Processes on Human Bone
Michael CursioNecropolis Session 9
2010
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What is Taphonomy?
“A field of paleontology, paleo-anthropology, and bioarcheology that studies human and animal remains in relation to the post-mortem (after death) transformations that occur in burial sites. In a broader sense, taphonomy is the study of the processes that leads to fossilization, as well as the stages of transformation of remains through the action of environmental factors”
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Antemortem“Before Death”-refers to anomalies inflicted on bone well before time of death
Perimortem“Near Death”-refers to anomalies inflicted on bone just before or just after time of death
Postmortem“After Death”-refers to anomalies inflicted on bone long after time of death
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Agents of Taphonomy
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Human DecompositionRate highly dependant on surrounding conditions-dry v.s humid, exposed v.s covered
Putrefaction-body’s bacteria begins to break down cellular tissue, gas build up, green colour, “slippage”
~20 days after death body begins to turn dark, gas is expelled, formation of adipocere
Mummification and skeletonization-longest period of decomposition, more dependant on soil pH
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Relevance to the Sanisera Necropolis
All of our finds are post-mortemTombs and burials-less exposure, contained contextScavenging? Insect Activity?Multiple burials/grave robbingWhat can be understood about the lives of the interred?
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Examples: Fracturing
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Antemortem v.s Postmortem
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Examples: Rodent Gnawing